Fix typo.
fixing spelling mistakes using aspell

Conflicts:
	billing.md
	homestead.md
	migrations.md
	queues.md
	releases.md
	upgrade.md
Fix wording in pagination.md
Merge pull request #786 from nikush/patch-3

Fix wording in pagination.md
Merge pull request #780 from nikush/patch-1

Fix typo.
Merge pull request #783 from lukearmstrong/4.1

fixing spelling mistakes using aspell
Merge branch '4.1' into 4.2