removed bug if there are less than topK results
added indexInIndex to Occurences for debug purposes
removed bug: there were two different ways to read the index
edited formatting
added links to wikipage
added assertionerror if the index is in danger
Merge remote-tracking branch 'origin/master'

Conflicts:
	mySearchEngine/src/main/java/de/hpi/krestel/mySearchEngine/MyQuery.java

used other version than mine