Update README.
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COMPILING
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-To compile the cmocka library and example applications run cmake /path/to/source
-followed by make. On Windows you can use the cmake gui.
+To compile the cmocka library and example applications run, create a build dir,
+and in the build dir calld 'cmake /path/to/source' followed by 'make'. On
+Windows you can use the cmake gui. More details can be found in the INSTALL file.
