Cleaned up some minor wording issues.
Added more information about minimatch expressions.
Added example with multiple expressions for the same preprocessor.
Merge branch 'master' of https://github.com/davidmichaelkarr/karma.git
docs -
01-configuration-file.md:
Changed Overview from h1 to h2.
Readded the "Be aware that preprocessors ..." line that I inadvertently
deleted, and also added an example to clarify this.
02-files.md:
Reworded phrasing about "glob" and "minimatch".
Readded more text that I somehow deleted.
04-preprocessors.md:
Clarified example showing multiple expressions for the same
preprocessor.
Readded more text that I somehow deleted.