Update contribution instructions

README.md

@@ -1,6 +1,6 @@
 
 <p align="center">
-  <img width="500" alt="logo" src="https://raw.githubusercontent.com/Lekuruu/titanic/main/.github/logo/logo_medium.png">
+  <img width="400" alt="logo" src="https://raw.githubusercontent.com/Lekuruu/titanic/main/.github/logo/logo_medium.png">
 </p>
 
 # Titanic
@@ -16,19 +16,24 @@ The main goal of this project was achieved. However, there are still a good amou
 ## Contributing
 
 You are welcome to make any kinds of suggestions or contributions to this project.
-Feel free to contact me if you have any questions.
+I would suggest starting by familiarizing yourself with the different kinds of external resources and APIs, that the codebase offers.
+I have written a document about it [here](https://github.com/osuTitanic/common/blob/main/USAGE.md).  
+For large-scale changes you want to make, I'd suggest to contact me for further help and coordination.
+
+Although the project at this point is quite stable, there may be some outdated code that should have been refactored a while ago.
+Please note that I've been working on this solo for about three years, so I am very happy when stuff just works.
 
 ## Credits
 
-- All [testers](https://osu.titanic.sh/g/8) that somehow found the project through this GitHub repo and decided to register through Discord DMs
+- All [testers](https://osu.titanic.sh/g/8) that somehow found the project through GitHub and decided to register through Discord DMs
 - Everyone that donated & contributed to this project (you guys are a big help!)
 - [Adachi](https://github.com/kanaarima/) for helping with the Discord bot & developing the pp system
 - Beatmap mirrors ([osu.direct](https://osu.direct/), [nerinyan](https://nerinyan.moe/) & [mino](https://catboy.best))
 
 ## Screenshots
 
-![sanic](https://raw.githubusercontent.com/osuTitanic/titanic/main/.github/images/screenshot007.jpg)
-![cool](https://raw.githubusercontent.com/osuTitanic/titanic/main/.github/images/screenshot008.jpg)
-![wow](https://raw.githubusercontent.com/osuTitanic/titanic/main/.github/images/screenshot023.jpg)
-![nice](https://raw.githubusercontent.com/osuTitanic/titanic/main/.github/images/screenshot005.jpg)
-![multiplayer](https://raw.githubusercontent.com/osuTitanic/titanic/main/.github/images/screenshot006.jpg)
+![image](https://raw.githubusercontent.com/osuTitanic/titanic/main/.github/images/screenshot005.jpg)
+![image](https://raw.githubusercontent.com/osuTitanic/titanic/main/.github/images/screenshot006.jpg)
+![image](https://raw.githubusercontent.com/osuTitanic/titanic/main/.github/images/screenshot023.jpg)
+![image](https://raw.githubusercontent.com/osuTitanic/titanic/main/.github/images/screenshot008.jpg)
+![image](https://raw.githubusercontent.com/osuTitanic/titanic/main/.github/images/screenshot007.jpg)