chore(docs): fix grammar

Author: mithun-daa

README.md

@@ -162,7 +162,7 @@ ng e2e
 
 Before running the tests make sure you are serving the app via `ng serve`.
 
-End-to-end tests are ran via [Protractor](https://angular.github.io/protractor/).
+End-to-end tests are run via [Protractor](https://angular.github.io/protractor/).
 
 
 ### Deploying the app via GitHub Pages