Added contribution guidelines and installation instructions. Removed Git as a prerequisite.
Added contribution guidelines and installation instructions. Removed Git as a prerequisite.

Ceece/timestamp-ms,laloptk/usho-url-shortner,laloptk/convert-dates,tan-vu/url-shortener-microservice,roelver/shumicro,Ceece/whoami,Ceece/timestamp-ms,thebluegene/nightlife-app,therebelbeta/clementinejs-test,laloptk/convert-dates,laloptk/click-count,thebluegene/nightlife-app,megaboy101/FCC-metadata-filer,therebelbeta/clementinejs-test,blehr/todoApp-clementine-standard,roelver/shumicro,lukaskwkw/fcc-url-shortener,laloptk/usho-url-shortner,laloptk/request-header-parser-microservice,lukaskwkw/fcc-url-shortener,blehr/todoApp-clementine-standard,tan-vu/imaging-search-layer,ZebGirouard/Cloud9-Clementine,laloptk/click-count,laloptk/image-search,tan-vu/imaging-search-layer,megaboy101/FCC-metadata-filer,ZebGirouard/Cloud9-Clementine,laloptk/image-search,tan-vu/url-shortener-microservice