docs: update README with minimal description and add gitignore

.gitignore

@@ -0,0 +1,9 @@
+__pycache__/
+*.py[cod]
+*$py.class
+.env
+.venv/
+venv/
+ENV/
+*.log
+.DS_Store

README.md

@@ -1,9 +1,14 @@
 # just-download
-- youtube downloads for thumnail, video (including shorts), audio only, subtitles, 
- - channel art comin soon (broken for now)
-- instagram downloads for thumbnail, reels, posts (**only public accounts or private accounts the the account follows lmao**)
- - channel avater broken rn
- 
-justdownload.netlify.app
 
-selfhost tutorial comin soon and so will actual documentation lol
+give link. get video.
+
+## features
+
+- youtube downloads (video, audio, thumbnail, subtitles)
+- instagram downloads (reels, posts)
+- minimal dark web interface
+- self-hostable fastapi backend
+
+## license
+
+MIT