JS: Fix Spelling of JavaScript

Summary:
Fixes some misspellings of JavaScript.

Changelog:
[Internal]

Reviewed By: cpojer

Differential Revision: D21536786

fbshipit-source-id: d5551dfbb3895d0806d31ba38ecaeeeb7843bf20

React/Base/RCTJSInvokerModule.h

@@ -6,7 +6,7 @@
  */
 
 /**
- * This protocol should be adopted when a turbo module needs to directly call into Javascript.
+ * This protocol should be adopted when a turbo module needs to directly call into JavaScript.
  * In bridge-less React Native, it is a replacement for [_bridge enqueueJSCall:].
  */
 @protocol RCTJSInvokerModule