add contribute guide line

Author: officialrajdeepsingh

CONTRIBUTING.md

@@ -0,0 +1,16 @@
+# Contribution guideline
+
+All the code contribution under MIT license. whatever you change all under MIT license.
+
+## How to Contribution
+
+The contribution is sow easy in fastest theme. You know about ghost installation and basis knowledge about the ghost cms, HTML,tailwind css, handlebars.js and gulp. All the configuration is all ready define and you just run npm script for it. 
+
+## steps
+
+1. clone the theme local with `git clone https://github.com/frontendweb3/fastest.git`
+2. change the director with `cd fastest` and run `pnpm install or npm install or yarn install`
+3. change any thing related to tailwind css them kae sure run separate sever for tailwind css using `pnpm start or npm run start`.first-letter:
+4. change any thing related to javascript then run `pnpm gulp or npm run gulp`. it will help to build or update the production ready javascript file in `assets/build/js` folder.
+
+Any query ask me by email: [email protected]