Fix typos in the test cases of cl_commandQueue_enqueueWriteImage_with_HTMLCanvasElement.html , cl_commandQueue_enqueueWriteImage_with_HTMLImageElement.html and cl_commandQueue_enqueueReadImage_with_HTMLCanvasElement.html
Merge pull request #93 from junmin-zhu/typos

Fix typos in the test cases of cl_commandQueue_enqueueWriteImage_with_HT...