docs: Fix two typos and add some blank lines to commands.md (#607)

* docs: Fix two typos and add some blank lines to commands.md

* Update docs/commands.md

Co-authored-by: Simran <Simran-B@users.noreply.github.com>

Co-authored-by: Thomas Boop <52323235+thboop@users.noreply.github.com>

docs/commands.md

@@ -57,7 +57,7 @@ For example, if you mask the letter `l`, running `echo "Hello FOO BAR World"` wi
 
 ### Group and Ungroup Log Lines
 
-Emitting a group with a title will instruct the logs to create a collapsable region up to the next ungroup command.
+Emitting a group with a title will instruct the logs to create a collapsible region up to the next endgroup command.
 
 ```bash
 echo "::group::my title"   
@@ -72,6 +72,7 @@ function endGroup(): void {}
 ```
 
 ### Problem Matchers
+
 Problems matchers can be used to scan a build's output to automatically surface lines to the user that matches the provided pattern. A file path to a .json Problem Matcher must be provided. See [Problem Matchers](problem-matchers.md) for more information on how to define a Problem Matcher.
 
 ```bash
@@ -81,6 +82,7 @@ echo "::remove-matcher owner=eslint-compact::"
 
 `add-matcher` takes a path to a Problem Matcher file
 `remove-matcher` removes a Problem Matcher by owner
+
 ### Save State
 
 Save a state to an environmental variable that can later be used in the main or post action.
@@ -102,6 +104,7 @@ There are several commands to emit different levels of log output:
 | error | `echo "::error::My error message"` |
 
 ### Command Echoing
+
 By default, the echoing of commands to stdout only occurs if [Step Debugging is enabled](./action-debugging.md#How-to-Access-Step-Debug-Logs)
 
 You can enable or disable this for the current step by using the `echo` command.
@@ -127,12 +130,12 @@ The `add-mask`, `debug`, `warning` and `error` commands do not support echoing.
 ### Command Prompt
 
 CMD processes the `"` character differently from other shells when echoing. In CMD, the above snippets should have the `"` characters removed in order to correctly process. For example, the set output command would be:
+
 ```cmd
 echo ::set-output name=FOO::BAR
 ```
 
-
-# Environment files
+## Environment files
 
 During the execution of a workflow, the runner generates temporary files that can be used to perform certain actions. The path to these files are exposed via environment variables. You will need to use the `utf-8` encoding when writing to these files to ensure proper processing of the commands. Multiple commands can be written to the same file, separated by newlines.
 
@@ -146,7 +149,8 @@ echo "FOO=BAR" >> $GITHUB_ENV
 
 Running `$FOO` in a future step will now return `BAR`
 
-For multiline strings, you may use a heredoc style syntax with your choice of delimeter. In the below example, we use `EOF` 
+For multiline strings, you may use a heredoc style syntax with your choice of delimeter. In the below example, we use `EOF`.
+
 ```
 steps:
   - name: Set the value
@@ -160,6 +164,7 @@ steps:
 This would set the value of the `JSON_RESPONSE` env variable to the value of the curl response.
 
 The expected syntax for the heredoc style is:
+
 ```
 {VARIABLE_NAME}<<{DELIMETER}
 {VARIABLE_VALUE}
@@ -183,13 +188,15 @@ echo "/Users/test/.nvm/versions/node/v12.18.3/bin" >> $GITHUB_PATH
 Running `$PATH` in a future step will now return `/Users/test/.nvm/versions/node/v12.18.3/bin:{Previous Path}`;
 
 This is wrapped by the core addPath method:
+
 ```javascript
 export function addPath(inputPath: string): void {}
 ```
 
 ### Powershell
 
 Powershell does not use UTF8 by default. You will want to make sure you write in the correct encoding. For example, to set the path:
+
 ```
 steps:
   - run: echo "mypath" | Out-File -FilePath $env:GITHUB_PATH -Encoding utf8 -Append