fix(template functions): Use function Title instead of ToTitle to get…

… Capitalize strings instead of upper strings

using cases.Title because the strings.Title function is deprecated and refs to cases.Title

go.mod

@@ -12,6 +12,7 @@ require (
 	github.com/mitchellh/cli v1.1.4
 	github.com/russross/blackfriday v1.6.0
 	github.com/zclconf/go-cty v1.10.0
+	golang.org/x/text v0.3.7
 )
 
 require (
@@ -37,5 +38,4 @@ require (
 	github.com/spf13/cast v1.5.0 // indirect
 	golang.org/x/crypto v0.0.0-20220622213112-05595931fe9d // indirect
 	golang.org/x/sys v0.0.0-20220627191245-f75cf1eec38b // indirect
-	golang.org/x/text v0.3.7 // indirect
 )

internal/provider/template.go

@@ -7,6 +7,8 @@ import (
 	"strings"
 	"text/template"
 
+	"golang.org/x/text/cases"
+
 	tfjson "github.com/hashicorp/terraform-json"
 
 	"github.com/hashicorp/terraform-plugin-docs/internal/mdplain"
@@ -39,7 +41,7 @@ func newTemplate(name, text string) (*template.Template, error) {
 		"prefixlines":   tmplfuncs.PrefixLines,
 		"split":         strings.Split,
 		"tffile":        terraformCodeFile,
-		"title":         strings.ToTitle,
+		"title":         cases.Title,
 		"trimspace":     strings.TrimSpace,
 		"upper":         strings.ToUpper,
 	})