docs: add getting-started steps to README

README.md

@@ -1,3 +1,15 @@
 # Leet2Hub
 
 A browser extension that uploads LeetCode submissions to GitHub.
+
+### Get Started
+
+1. Create a new repository on GitHub.
+2. [Create a Github Personal Access Token](https://docs.github.com/en/authentication/keeping-your-account-and-data-secure/managing-your-personal-access-tokens#creating-a-fine-grained-personal-access-token) with the following permission for the repository:
+
+   "Contents" repository permissions (read/write)
+
+3. Download the extension from [Releases](https://github.com/iShibi/leet2hub/releases).
+4. Unzip the extension and load it on the browser.
+5. Go to extension options page to add Github PAT and repository link.
+6. THAT'S IT!