doc: update contributing

Author: Je

CONTRIBUTING.md

@@ -6,7 +6,7 @@ Welcome, and thank you for taking time in contributing to Aleph.js!
 All contributors are expected to follow our [Code of Conduct](CODE_OF_CONDUCT.md).
 
 ## Development Setup
-You will need [deno](https://deno.land/) 1.4+ and [vscode](https://code.visualstudio.com/) with deno [extension](https://marketplace.visualstudio.com/items?itemName=denoland.vscode-deno).
+You will need [Deno](https://deno.land/) 1.4+ and [VS Code](https://code.visualstudio.com/) with [deno extension](https://marketplace.visualstudio.com/items?itemName=denoland.vscode-deno).
 
 1. Fork this repository to your own GitHub account.
 2. Clone the repository to your local device.
@@ -18,7 +18,7 @@ deno run -A --unstable --importmap=import_map.json cli.ts ./examples/hello-world
 ```
 
 ## Testing
-Running all tests:
+Run all tests:
 ```bash
 deno test -A --unstable
 ```