Update SUMMARY.md

Adding capital letters to OS
Update README.md

Typos and capital letters.
Update indexhtml.md

Capital letters
Update check.md

Capital letters
Update config.md

Capital letters
Update hockeyapp.md

Capital letters
Update index.md

Capital letters and formulation
Update info.md

Capital letters
Update prepare.md

Capital letters
Update update.md

Capital letters
Update index.md

Capital letters for products, OS
Update index.md

Capital letters and formulation
Update android.md

Capital letters
Update browser.md

Capital letters
Update index.md

Capital letters
Update ios.md

Capital letters
Update wp8.md

Capital letters
Update index.md

Capital letters
Update index.md

Capital lettes and wording
Update index.md

Capital letters and markdown