update readme

README.md

@@ -6,15 +6,42 @@ GTK 4 / C++ implementation branch
 > Project in development!
 >
 
-## Dependencies
+## Install
+
+### Source
+
+#### Linux
+
+##### Dependencies
 
 ``` bash
 sudo apt install git libgtk-4-dev
 ```
 
-## Install
+##### Build
 
 * `git clone https://github.com/YGGverse/Yoda.git`
 * `cd Yoda`
 * `git checkout master`
 * `make`
+
+###### Update
+
+* `cd Yoda`
+* `git checkout master`
+* `git pull`
+* `make clean`
+* `make`
+
+## Development
+
+### Environment
+
+* `pkg-config --cflags --libs gtk4`
+
+### Contribution
+
+* `cd Yoda`
+* `git pull`
+* `git checkout master`
+* `git checkout -b 'contribution-name'`