reset_column_infomation shouldn't be part of the assertion.
recount files quantity
[ci skip ]Document transform_values && transform_values!
[ci skip] document truncate_words
code quotes for classname
[ci skip] wrap to 80 chars
[ci skip] docs asset_pipeline#CDNs
[ci skip] docs asset_pipeline CDN set up
[ci skip] docs CDN caching behavior
[ci skip] docs CDN header debugging
[ci skip] docs CDN Cache-Control behavior
[ci skip] docs can URL cache invalidation
[ci skip] fix grammar in docs
Fix typo in ActiveJob guide [ci skip]
[ci skip] use NOTE instead of Note
[ci skip] proper end to sentence
[ci skip] docs grammar
Highlight Class/Module [ci skip]
Update caching_with_rails.md [ci skip]

Highlight methods
Remove 'if exists' from drop table statement then use `table_exists?`

Since 'drop table if exists' statement does not always work with
some databases such as Oracle.