Added documentation for running tests

Author: maxwalley

README.md

@@ -15,4 +15,11 @@ Tests are automatically built, to turn them off add the option ```-DBUILD_TESTS=
 
 Permission has kindly been given by the EBU for this project to host the test files referenced in EBU Tech 3341 and EBU Tech 3342. Please find the original files here: https://tech.ebu.ch/publications/ebu_loudness_test_set 
 
-The test project must then be run from the same location as the test content folder.
+To build and run the tests use the following commands:
+```
+mkdir build
+cd build 
+cmake ..
+make
+ctest
+```

test/EBU3341_Test_Set.cpp

@@ -12,7 +12,9 @@
 
 std::optional<std::filesystem::path> getTestContentPath()
 {
-    const std::filesystem::path path = std::filesystem::current_path() / "test_content";
+    const std::filesystem::path path = std::filesystem::current_path() / "../_deps/ebuloudnesstestset-src";
+    std::cout << path << std::endl;
+
     return std::filesystem::exists(path) ? path : std::optional<std::filesystem::path>(std::nullopt);
 }