Fix formatting, whitespace, markdownlint (#9) (#40)

Co-authored-by: Frieder Bluemle <frieder.bluemle@gmail.com>

README.md

@@ -1,13 +1,12 @@
+# Create a JavaScript Action
 
 <p align="center">
   <a href="https://github.com/actions/javascript-action/actions"><img alt="javscript-action status" src="https://github.com/actions/javascript-action/workflows/units-test/badge.svg"></a>
 </p>
 
-# Create a JavaScript Action
-
 Use this template to bootstrap the creation of a JavaScript action.:rocket:
 
-This template includes tests, linting, a validation workflow, publishing, and versioning guidance.  
+This template includes tests, linting, a validation workflow, publishing, and versioning guidance.
 
 If you are new, there's also a simpler introduction.  See the [Hello World JavaScript Action](https://github.com/actions/hello-world-javascript-action)
 
@@ -17,12 +16,14 @@ Click the `Use this Template` and provide the new repo details for your action
 
 ## Code in Main
 
-Install the dependencies  
+Install the dependencies
+
 ```bash
-$ npm install
+npm install
 ```
 
-Run the tests :heavy_check_mark:  
+Run the tests :heavy_check_mark:
+
 ```bash
 $ npm test
 
@@ -30,7 +31,6 @@ $ npm test
   ✓ throws invalid number (3ms)
   ✓ wait 500 ms (504ms)
   ✓ test runs (95ms)
-
 ...
 ```
 
@@ -51,9 +51,9 @@ const core = require('@actions/core');
 ...
 
 async function run() {
-  try { 
+  try {
       ...
-  } 
+  }
   catch (error) {
     core.setFailed(error.message);
   }
@@ -89,15 +89,15 @@ Users shouldn't consume the action from master since that would be latest code a
 Checkin to the v1 release branch
 
 ```bash
-$ git checkout -b v1
-$ git commit -a -m "v1 release"
+git checkout -b v1
+git commit -a -m "v1 release"
 ```
 
 ```bash
-$ git push origin v1
+git push origin v1
 ```
 
-Your action is now published! :rocket: 
+Your action is now published! :rocket:
 
 See the [versioning documentation](https://github.com/actions/toolkit/blob/master/docs/action-versioning.md)