diff --git a/CHANGELOG.md b/CHANGELOG.md
index 292457a1..18e70de1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,17 @@
+# 0.12.0 (June 29, 2022)
+
+BUG FIXES:
+
+* template data: A regression was introduced in [#155](https://github.com/hashicorp/terraform-plugin-docs/pull/155) making template data field `HasExample` and `HasImport` always true ([#162](https://github.com/hashicorp/terraform-plugin-docs/pull/162)).
+
+NEW FEATURES:
+
+* template functions: Added `lower`, `upper` and `title` ([#162](https://github.com/hashicorp/terraform-plugin-docs/pull/162)).
+
+ENHANCEMENTS:
+
+* Added documentation for all the template functions and template data fields ([#162](https://github.com/hashicorp/terraform-plugin-docs/pull/162)).
+
 # 0.11.0 (June 28, 2022)
 
 NEW FEATURES:
diff --git a/README.md b/README.md
index afd2742b..8efab099 100644
--- a/README.md
+++ b/README.md
@@ -128,22 +128,50 @@ For examples:
 
 ### Templates
 
-The templates are implemented with Go [`text/template`](https://golang.org/pkg/text/template/) using the following objects and functions:
-
-#### Template Objects
-
-TBD
-
-#### Template Functions
-
-| Function        | Description                                                                                                        |
-|-----------------|--------------------------------------------------------------------------------------------------------------------|
-| `codefile`      | Create a Markdown code block and populate it with the contents of a file. Path is relative to the repository root. |
-| `tffile`        | A special case of the `codefile` function. In addition this will elide lines with an `OMIT` comment.               |
-| `trimspace`     | `strings.TrimSpace`                                                                                                |
-| `plainmarkdown` | Render Markdown content as plaintext                                                                               |
-| `split`         | Split string into sub-strings, eg. `split .Name "_"`                                                               |
-
+The templates are implemented with Go [`text/template`](https://golang.org/pkg/text/template/)
+using the following data fields and functions:
+
+#### Data fields
+
+##### Provider
+
+|                   Field |  Type  | Description                                                                               |
+|------------------------:|:------:|-------------------------------------------------------------------------------------------|
+|          `.Description` | string | Provider description                                                                      |
+|           `.HasExample` |  bool  | Is there an example file?                                                                 |
+|          `.ExampleFile` | string | Path to the file with the terraform configuration example                                 |
+|         `.ProviderName` | string | Canonical provider name (ex. `terraform-provider-random`)                                 |
+|    `.ProviderShortName` | string | Short version of the provider name (ex. `random`)                                         |
+| `.RenderedProviderName` | string | Value provided via argument `--rendered-provider-name`, otherwise same as `.ProviderName` |
+
+##### Resources / Data Source
+
+|                   Field |  Type  | Description                                                                               |
+|------------------------:|:------:|-------------------------------------------------------------------------------------------|
+|                 `.Name` | string | Name of the resource/data-source (ex. `tls_certificate`)                                  |
+|                 `.Type` | string | Either `Resource` or `Data Source`                                                        |
+|          `.Description` | string | Resource / Data Source description                                                        |
+|           `.HasExample` |  bool  | Is there an example file?                                                                 |
+|          `.ExampleFile` | string | Path to the file with the terraform configuration example                                 |
+|            `.HasImport` |  bool  | Is there an import file?                                                                  |
+|           `.ImportFile` | string | Path to the file with the command for importing the resource                              |
+|         `.ProviderName` | string | Canonical provider name (ex. `terraform-provider-random`)                                 |
+|    `.ProviderShortName` | string | Short version of the provider name (ex. `random`)                                         |
+| `.RenderedProviderName` | string | Value provided via argument `--rendered-provider-name`, otherwise same as `.ProviderName` |
+
+#### Functions
+
+| Function        | Description                                                                                       |
+|-----------------|---------------------------------------------------------------------------------------------------|
+| `codefile`      | Create a Markdown code block with the content of a file. Path is relative to the repository root. |
+| `lower`         | Equivalent to [`strings.ToLower`](https://pkg.go.dev/strings#ToLower).                            |
+| `plainmarkdown` | Render Markdown content as plaintext.                                                             |
+| `prefixlines`   | Add a prefix to all (newline-separated) lines in a string.                                        |
+| `split`         | Split string into sub-strings, by a given separator (ex. `split .Name "_"`).                      |
+| `title`         | Equivalent to [`strings.ToLower`](https://pkg.go.dev/strings#ToTitle).                            |
+| `tffile`        | A special case of the `codefile` function, designed for Terraform files (i.e. `.tf`).             |
+| `trimspace`     | Equivalent to [`strings.TrimSpace`](https://pkg.go.dev/strings#TrimSpace).                        |
+| `upper`         | Equivalent to [`strings.ToLower`](https://pkg.go.dev/strings#ToUpper).                            |
 
 ## Disclaimer
 
diff --git a/internal/provider/template.go b/internal/provider/template.go
index f1970f78..0aa777a6 100644
--- a/internal/provider/template.go
+++ b/internal/provider/template.go
@@ -32,17 +32,17 @@ type (
 func newTemplate(name, text string) (*template.Template, error) {
 	tmpl := template.New(name)
 
-	tmpl.Funcs(template.FuncMap(map[string]interface{}{
+	tmpl.Funcs(map[string]interface{}{
 		"codefile":      tmplfuncs.CodeFile,
+		"lower":         strings.ToLower,
 		"plainmarkdown": mdplain.PlainMarkdown,
 		"prefixlines":   tmplfuncs.PrefixLines,
-		"tffile": func(file string) (string, error) {
-			// TODO: omit comment handling
-			return tmplfuncs.CodeFile("terraform", file)
-		},
-		"trimspace": strings.TrimSpace,
-		"split":     strings.Split,
-	}))
+		"split":         strings.Split,
+		"tffile":        terraformCodeFile,
+		"title":         strings.ToTitle,
+		"trimspace":     strings.TrimSpace,
+		"upper":         strings.ToUpper,
+	})
 
 	var err error
 	tmpl, err = tmpl.Parse(text)
@@ -53,6 +53,11 @@ func newTemplate(name, text string) (*template.Template, error) {
 	return tmpl, nil
 }
 
+func terraformCodeFile(file string) (string, error) {
+	// TODO: omit comment handling
+	return tmplfuncs.CodeFile("terraform", file)
+}
+
 func renderTemplate(name string, text string, out io.Writer, data interface{}) error {
 	tmpl, err := newTemplate(name, text)
 	if err != nil {
@@ -130,16 +135,11 @@ func (t providerTemplate) Render(providerName, renderedProviderName, exampleFile
 		return "", nil
 	}
 	return renderStringTemplate("providerTemplate", s, struct {
-		Type        string
-		Name        string
 		Description string
 
 		HasExample  bool
 		ExampleFile string
 
-		HasImport  bool
-		ImportFile string
-
 		ProviderName      string
 		ProviderShortName string
 
@@ -149,7 +149,7 @@ func (t providerTemplate) Render(providerName, renderedProviderName, exampleFile
 	}{
 		Description: schema.Block.Description,
 
-		HasExample:  exampleFile != "",
+		HasExample:  exampleFile != "" && fileExists(exampleFile),
 		ExampleFile: exampleFile,
 
 		ProviderName:      providerName,
@@ -195,10 +195,10 @@ func (t resourceTemplate) Render(name, providerName, renderedProviderName, typeN
 		Name:        name,
 		Description: schema.Block.Description,
 
-		HasExample:  exampleFile != "",
+		HasExample:  exampleFile != "" && fileExists(exampleFile),
 		ExampleFile: exampleFile,
 
-		HasImport:  importFile != "",
+		HasImport:  importFile != "" && fileExists(importFile),
 		ImportFile: importFile,
 
 		ProviderName:      providerName,