punctuation and grammar

Summary:
Use a comma for clear punctuation, and use 'wants' verb.

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Use clear grammar for README file

(Write your test plan here. If you changed any code, please provide us with clear instructions on how you verified your changes work. Bonus points for screenshots and videos!)

(If this PR adds or changes functionality, please take some time to update the docs at https://github.com/facebook/react-native-website, and link to your PR here.)

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  CATEGORY
[----------]        TYPE
[ CLI      ]   [-------------]      LOCATION
[ DOCS     ]   [ BREAKING    ]   [-------------]
[ GENERAL  ]   [ BUGFIX      ]   [-{Component}-]
[ INTERNAL ]   [ ENHANCEMENT ]   [ {File}      ]
[ IOS      ]   [ FEATURE     ]   [ {Directory} ]   |-----------|
[ ANDROID  ]   [ MINOR       ]   [ {Framework} ] - | {Message} |
[----------]   [-------------]   [-------------]   |-----------|

[CATEGORY] [TYPE] [LOCATION] - MESSAGE

 EXAMPLES:

 [IOS] [BREAKING] [FlatList] - Change a thing that breaks other things
 [ANDROID] [BUGFIX] [TextInput] - Did a thing to TextInput
 [CLI] [FEATURE] [local-cli/info/info.js] - CLI easier to do things with
 [DOCS] [BUGFIX] [GettingStarted.md] - Accidentally a thing/word
 [GENERAL] [ENHANCEMENT] [Yoga] - Added new yoga thing/position
 [INTERNAL] [FEATURE] [./scripts] - Added thing to script that nobody will see
-->
Closes #17545

Differential Revision: D6711711

Pulled By: hramos

fbshipit-source-id: 315f66e5b36c4a3ffdc5407876cc0fc2ed596a56

Author: Igor Ganapolsky

ReactAndroid/src/main/java/com/facebook/react/ReactRootView.java

@@ -57,9 +57,9 @@
  * ViewGroup#onInterceptTouchEvent} method in order to be notified about the events for all of its
  * children and it's also overriding {@link ViewGroup#requestDisallowInterceptTouchEvent} to make
  * sure that {@link ViewGroup#onInterceptTouchEvent} will get events even when some child view start
- * intercepting it. In case when no child view is interested in handling some particular touch event
+ * intercepting it. In case when no child view is interested in handling some particular touch event,
  * this view's {@link View#onTouchEvent} will still return true in order to be notified about all
- * subsequent touch events related to that gesture (in case when JS code want to handle that
+ * subsequent touch events related to that gesture (in case when JS code wants to handle that
  * gesture).
  */
 public class ReactRootView extends SizeMonitoringFrameLayout