Simpler Language and format fixes README.md

[Imvedansh]

Suggestion for more simpler language and few Fixes in format and grammer.

1. For clarity & conciseness
   ->Original: "CloudMonkey can be used both as an interactive shell and as a command line tool which simplifies Apache
   CloudStack configuration and management."
   ->Corrected: "It can be used both as an interactive shell and as a command-line tool, simplifying Apache CloudStack
   configuration and management."

2. Verb Agreement
   ->Original: "The modern cloudmonkey is a re-written and simplified port in Go and can be used with Apache CloudStack
   4.9 and above."
   ->Corrected: "The modern CloudMonkey is a rewritten and simplified port in Go, compatible with Apache CloudStack 4.9
   and above."

3. Punctuation Errors

   Original: "For development the pre-requisites are Go 1.11 or latest and a unix-like environment."
   Corrected: "To develop CloudMonkey, you need Go 1.11 or later and a Unix-like environment."

4. Incorrect Prepositions & Formatting

   Original: "One would have to hence do an initial setup of basic configuration such apikey/secretkey/username/
   password/url for the required profile(s) as required."
   Corrected: "One must first set up basic configurations such as apikey, secretkey, username, password, and url for the
   required profile(s)."