Update README.md

README.md

@@ -5,10 +5,12 @@
 This is a toy CMake project to start using GitLab and CI
 with GoogleTest, valgrind, and coverage ready to use.
 
-Just copy (or clone) the contents of this repo and then:
-
-* Edit CMakeLists.txt and src/CMakeLists.txt to your taste.
-* Edit/replace src/main.cpp.
-* Remove dummy source files like src/SomeHeader.h, tests/silly_test.cpp, etc.
-
+The project is organized with three directories:
+* `src`, where you should put all your code.
+* `tests`, where you should put all the testing code.
+* `ext`, where you should import any external project/library (like GoogleTest).
 
+To use it, just copy (or clone) the contents of this repo and then:
+* Edit `CMakeLists.txt` and `src/CMakeLists.txt` to your taste.
+* Edit/replace `src/main.cpp`.
+* Remove dummy source files like `src/SomeHeader.h`, `tests/silly_test.cpp`, etc.