docs: Spruce up documentation with examples.

README.md

@@ -2,16 +2,22 @@
 
 A GitHub action that sends your code coverage to [Code Climate](http://codeclimate.com/).
 
+ℹ️ For now, it only supports Node.js projects.
+
 # Usage
 This action requires that you set [`CC_TEST_REPORTER_ID`](https://docs.codeclimate.com/docs/configuring-test-coverage) environment variable. You can find it under Repo Settings in your Code Climate project.
 
+The default coverage command is `yarn coverage`. You can change it by setting the `args` value.
+
 # Example
 
-<img align="right" height="350" src="/action.png?raw=true">
+<img height="891" src="action.png?raw=true">
 
 ```
-action "send coverage to code climate" {
+action "Publish code coverage" {
   uses = "paambaati/[email protected]"
   env = ["CC_TEST_REPORTER_ID"]
 }
 ```
+
+Example project — [paambaati/websight](https://github.com/paambaati/websight/blob/master/.github/main.workflow)