3.0 - Corrections and edits to query builder docs

* Added () to method names
* Added code highlighting to object references
* Corrected "Updating Data" to use ``patchEntity()``
* Corrected "Deleting data" title
* Chopped lines to 80 characters (sorry if this makes reviewing corrections a pain in the ass)
* Added commas where applicable
* Other miscellaneous typo/grammar corrections