Merge #29: Update make test command in readme

c8923eb Update make test command in readme (Russell Yanofsky)

Pull request description:

  Avoid "not run" test error due to test not being built:

  ```
  The following tests FAILED:
            1 - mptest (Not Run)
  Errors while running CTest
  ```

  https://stackoverflow.com/questions/733475/cmake-ctest-make-test-doesnt-build-tests

Top commit has no ACKs.

Tree-SHA512: acda11386944a9a73e13cda09af7f9fccd059e4570561a47e89186393e6c13cf027e820462cc3705589bc1cb534906c0cecf5130a85d747d628396fe8b8512e2

Author: ryanofsky

README.md

@@ -43,7 +43,7 @@ mkdir build
 cd build
 cmake ..
 make
-make test
+make all test
 make install
 ```