Misleading statement/mistake in the documentation with regards compliation_database

In the README it states that in your .clang file you want to point to a project specific compilation database you need to specify it like so:

> compilation_database = "\"

Actually you need to specify to the directory that contains it, rather than to the database itself.
i.e. if the file sits at `catkin_ws/build/compile_commands.json` your .clang file should say

`compliation_database = "catkin_ws/build/"`

at the moment it implies you need to put

`compilation_database = "catkin_ws/build/compile_commands.json"`

It's worth fixing this because I was stuck for hours trying to figure out what the problem was!