readme: update compile flags section

README.md

@@ -147,9 +147,10 @@ GCC (>=7) or Clang (>=9) is supported.
 
 CMake option                  | Description
 :---------------------------- | :----------------------------
-`FIRESTARTER_BUILD_TYPE`      | Can be any of `FIRESTARTER`, `FIRESTARTER_CUDA`, `FIRESTARTER_ONEAPI`, or `FIRESTARTER_HIP`. Default `FIRESTARTER`
-`FIRESTARTER_LINK_STATIC`     | Link FIRESTARTER as a static binary. Note, dlopen is not supported in static binaries. This option is not available on macOS or with CUDA or OneAPI enabled. Default `ON`
-`FIRESTARTER_BUILD_HWLOC`     | Build hwloc dependency. Default `ON`
+`FIRESTARTER_BUILD_TYPE`      | Can be any of `FIRESTARTER`, `FIRESTARTER_CUDA`, `FIRESTARTER_ONEAPI`, or `FIRESTARTER_HIP`. Default: `FIRESTARTER`
+`FIRESTARTER_LINK_STATIC`     | Link FIRESTARTER as a static binary. Note, dlopen is not supported in static binaries. This option is not available on macOS or with CUDA or OneAPI enabled. Default: `ON`
+`FIRESTARTER_BUILD_HWLOC`     | Build hwloc dependency. Default: `ON`
+`FIRESTARTER_BUILD_TESTS`     | Enable the tests. Default: `OFF`
 `FIRESTARTER_FETCH_GOOGLETEST`| Fetch the GoogleTest dependency. Default: `ON`
 
 When building `FIRESTARTER_ONEAPI` make sure that the Intel Math Kernel