Use correct case for JavaScript (#2302)

Author: amartini51

commonly_proposed.md

@@ -4,7 +4,7 @@ This is a list of changes to the Swift language that are frequently proposed but
 
 Additionally, proposals for out-of-scope changes will not be scheduled for review. The [readme file](README.md) identifies a list of priorities for the next major release of Swift, and the [dashboard](https://www.swift.org/swift-evolution/) includes a list of changes that have been rejected after a formal review.
 
-Several of the discussions below refer to "C family" languages. This is intended to mean the extended family of languages that resemble C at a syntactic level, such as C++, C#, Objective-C, Java, and Javascript. Swift embraces its C heritage. Where it deviates from other languages in the family, it does so because the feature was thought actively harmful (such as the pre/post-increment `++`) or to reduce needless clutter (such as `;` or parentheses in `if` statements).
+Several of the discussions below refer to "C family" languages. This is intended to mean the extended family of languages that resemble C at a syntactic level, such as C++, C#, Objective-C, Java, and JavaScript. Swift embraces its C heritage. Where it deviates from other languages in the family, it does so because the feature was thought actively harmful (such as the pre/post-increment `++`) or to reduce needless clutter (such as `;` or parentheses in `if` statements).
 
 ## Basic Syntax and Operators