added contributing guidelines

CONTRIBUTING.md

@@ -0,0 +1,19 @@
+Thanks for wanting to contribute to Dasharr !
+
+## Quickstart :
+
+- clone the repo
+- start a postgresql database (the easiest way is with the one in `compose.yml`: `docker compose up db -d`)
+- create `.env` files from the `.env.example` ones in `backend/` and `frontend/` and edit the values you want
+- (optional, if you want to work on the frontend) install the frontend dependencies and run it: `cd frontend && npm install && npm run dev`
+- install the backend dependencies and run it: `cd backend && cargo run`
+- start coding !
+
+## What to do ?
+
+Looking for something to do ?
+
+- Many indexers are still to be added
+- Have a look at the issues of the repo
+
+Don't hesitate to get in touch on `#dev` on the discord server (link in the README)

README.md

@@ -37,3 +37,9 @@ We often times don't realize the evolution of the stats on torrent indexers, thi
 * RED
 
 </details>
+
+## Want to help ?
+
+- Have a look at [CONTRIBUTING.md](./CONTRIBUTING.md)
+- Report issues you might have, suggest new features
+- Hop on the discord server and let's chat