Removed params permit step from 5.6 section [ci skip]
Cleanup belongs to tests

simplified logic to calculate number of queries by using assert_queries
removed markdown code markers which were rendering in the generated AR querying guide
Merge pull request #11309 from crakalakin/AR-querying-guide

removes markdown code markers from displaying in the active record querying guide [ci skip]
Merge pull request #11307 from jetthoughts/cleanup_assert_sql

Cleanup belongs to tests
Merge pull request #11201 from jetthoughts/fix_create_post_example_in_getting_started

Improve Getting Started Guide