Update README

Author: MeisApps

README.md

@@ -2,3 +2,19 @@
 A windows task manager clone for Linux.
 
 <img src="screenshots/scr0.png" width="600" height="800"><img src="screenshots/scr1.png" width="600" height="800">
+
+
+# Building
+The following dependencies are required:
+* `libgtkmm-3.0`
+* `libprocps`
+
+```
+mkdir build
+cmake -B ./build -DCMAKE_BUILD_TYPE=Release
+cmake --build ./build --config Release
+```
+
+# Limitations
+* Apps Category only works on X11
+* Only NVIDIA GPUs using the proprietary driver are detected