fix typos in README.md:

[AMichaelP]

• i.e -> i.e.
• recomended -> recommended
• precent -> present
• eithe -> either
• multi-color -> multicolor
• retriving -> retrieving
• remove unneeded word: "depending"
• add missing commas

[jukebox42]

Thanks for the contribution! Ill merge this one now as it's only ready copy changes.