More content fixes

Author: jharmn

guidelines/REUSE.md

@@ -15,13 +15,13 @@ The following types are reusable, as defined by the spec:
 
 When authoring API design documents, common object definitions can be utilized to avoid duplication. For example, imagine multiple path definitions that each share a common path parameter, or a common response structure. The OpenAPI specification allows reuse of common object definitions through the use of "references".
 
-A reference a construct in your API design document that indicates "the content for this portion of the document is defined elsewhere". To create a reference, at the location in your document where you want to reuse some other definition, create an object that has a `$ref` property whose value is a URI pointing to where the definition is (more on this in later sections). 
+A reference is a construct in your API design document that indicates "the content for this portion of the document is defined elsewhere". To create a reference, at the location in your document where you want to reuse some other definition, create an object that has a `$ref` property whose value is a URI pointing to where the definition is (more on this in later sections). 
 
 OpenAPI's provides reference capabilities using the [JSON Reference](https://tools.ietf.org/html/draft-pbryan-zyp-json-ref-03) specification. 
 
 ### JSON Example
 
-``` json
+``` js
 {
   // ... 
   definitions: {