fix: changes to hl_group_value and fixed missmatch between all and any

[FluxxField]

• Fixed misspelled username in README. Fixes #63
• Config incorrectly had 'all' instead of 'any'. If statement was checking for 'any' for 'any node'. Took the time to refactor and return any if filetype is 'any' then just highlight whole file instead of traversing the node tree. Fixes #64
• Changed hl_group_value for link to bold. That way we dont have to worry about linking to a HL that has been cleared. Fixes #64