Update README.md

README.md

@@ -14,6 +14,7 @@ and other IDEs.
 
 Building from Terminal:
 Start in the project directory.
+To create a build for debugging:
 ```
 mkdir -p build/debug
 cd build/debug
@@ -21,6 +22,14 @@ cmake -DCMAKE_BUILD_TYPE=Debug ../..
 make
 ```
 
+To create a build for performance measurements:
+```
+mkdir -p build/release
+cd build/release
+cmake -DCMAKE_BUILD_TYPE=RelWithDebInfo ../..
+make
+```
+
 This creates the binaries test_all and main.
 
 Make sure your builds are not failing! <br/>