Revert "Revert "Improved headings in README.md file""
Revert "Revert "Improved headings in README.md file""

This reverts commit ecd424a10b949de536bddd6e4896b6429e712174.
Made a mistake in my last revert.

ajhaydock/PyGeoIpMap,pierrrrrrre/PyGeoIpMap,simudream/PyGeoIpMap