adds that withTrashed works on relationships, like restore
Added validation rule "array"
Added note about read/write.
Fix upgrade guide.
Fix method name.
Add note about specifying queue / tube.
Update cache.md

Fixed typo in cache.
Added Redis to the list of queue drivers.
Merge pull request #565 from fierycode/4.1

Update cache.md
Fixed a typo in extending.md
Merge pull request #569 from parthasarathigk/4.1

Fixed a typo in extending.md
Fixed typo in cache.md
added to db transaction description
Merge branch 'transactions' into 4.1
Fix controller method call.
Merge pull request #571 from albur/patch-1

Fixed typo in cache.md
Merge pull request #568 from mattcannon/4.1

Added Redis to the list of queue drivers.
fix typo.
Merge branch '4.1' of github.com:laravel/docs
Fix quote.