Fix(main.go): Cleaning error messages.
Feat(main.go): Remove flags from terms.
Feat(definition String method): Adding String() method definition to
                                remove brackets from urban dictionary
Feat(docs.go): Updating docs with -t command line option.
Feat(main.go): Bold the terms in ouput, cleanup errors for users.
Fix(main.go): Remove key related nonsense. Their raw API can be used alone.
Fix(README): Put doc.go output in readme.
Fix(doc.go): Spelling mistake
Feat(-w): Specify max width to print to terminal.
Feat(important): Adding license and readme.
Feat(*): Project init.