Fix invisible "Get Kotlin" button in Firefox
Update control-flow.md

Fixing some typos
Merge pull request #49 from tastapod/patch-1

Update control-flow.md
Minor correction in formatting: make logically nested conditions a sublist
Merge pull request #50 from JetBrains/control-flow-sublist

Minor correction in formatting: make logically nested conditions a subli...
Issue KT-5550. Added some comments about when return types must be made explicit.
Formatting + minor wording
Merge pull request #51 from JetBrains/return-type-functions-abreslav

Explicit return types