Rewrite the description and remove usage of whitespace in the library name.

• Improvements

• Rewrite the README and simplify the file hierarchy and the usage of symbolic links. Propose a less deep folder structure and use camel case names for Arduino sketches.
• Changed library name, i.e., removed any unambiguous white space, for example, MyMacros instead of 'My Macros.'
• Add the script mylink for automation when creating symbolic links.