Fix "encoding" to "media type" that I missed before.

Author: handrews

jsonschema-hyperschema.xml

@@ -437,8 +437,8 @@
                         The <xref target="submissionSchema">"submissionSchema"</xref> and
                         <xref target="submissionMediaType">"submissionMediaType"</xref> keywords
                         describe the ___domain of the processing function implemented by the target
-                        resource. Otherwise, as noted above, the submission schema and encoding are
-                        ignored for operations to which they are not relevant.
+                        resource. Otherwise, as noted above, the submission schema and media type
+                        are ignored for operations to which they are not relevant.
                     </t>
                 </section>
             </section>