Make gas input feature more readable

CHANGELOG.md

@@ -5,7 +5,7 @@
 ## 6.0.0 Thu Feb 07 2019
 
 - [#6082](https://github.com/MetaMask/metamask-extension/pull/6082): Migrate all users to the new UI
-- [#6114](https://github.com/MetaMask/metamask-extension/pull/6114): Set custom gas data in state from inline advance gas controls on send screen
+- [#6114](https://github.com/MetaMask/metamask-extension/pull/6114): Add setting for inputting gas price with a text field for advanced users.
 - [#6091](https://github.com/MetaMask/metamask-extension/pull/6091): Add Swap feature to CurrencyInput
 - [#6090](https://github.com/MetaMask/metamask-extension/pull/6090): Change gas labels to Slow/Average/Fast
 - [#6112](https://github.com/MetaMask/metamask-extension/pull/6112): Extract advanced gas input controls to their own component