Fixed typo in title before CI status image; moved image code to end of file, moved title and added description to before "Getting Started", added titles to two charts, and fixed overly-wide codes sample.
Fixed typo in title before CI status image; moved image code to end of file, moved title and added description to before "Getting Started", added titles to two charts, and fixed overly-wide codes sample.

poornachandra/incubator-tephra,StackVista/tephra,anwar6953/incubator-tephra,poornachandra/incubator-tephra,gokulavasan/incubator-tephra,StackVista/tephra,caskdata/tephra,caskdata/tephra,gokulavasan/incubator-tephra,gokulavasan/incubator-tephra,cdapio/tephra,poornachandra/incubator-tephra,anwar6953/incubator-tephra,cdapio/tephra