Minor Grammar Changes in README.md

[jakemcf22]

• sync'ed -> synced
• this library automatically handles automatically -> this library automatically handles
• Even full structural cloning (with cycles) is an optionally supported -> Even full structural cloning (with cycles) is optionally supported
• If arrays are used as keys, they are ordering by -> If arrays are used as keys, they are ordered by
• For example, here are the order of some different keys -> For example, here is the order of some different keys
• Split two seperate thoughts into two sentences instead of using a comma to splice them
• This functions like put -> This functions is similar to put
• which will be define -> which will define
• If this is duplicate key database -> If this is a duplicate key database

[kriszyp]

These are great corrections, thank you so much!