Correct typos in README.
Correct typos in README.

Global installation will try to use local module

racing-post/gemini,sergesemashko/gemini,pazone/gemini,racing-post/gemini,varya/gemini,pazone/gemini,vladislav-sevostyanov/gemini,varya/gemini,HDevel/gemini,gemini-testing/gemini,hatroman/gemini,HDevel/gemini