Create linux_building

documents/linux_building

@@ -0,0 +1,16 @@
+## Linux
+
+Generate the build directory in the shadPS4 directory:
+```
+cmake -S . -B build/
+```
+
+Enter the directory:
+```
+cd build/
+```
+
+Use make to build the project:
+```
+make -j$(nproc)
+```