Fix typo

Author: handrews

jsonschema-hyperschema.xml

@@ -1437,7 +1437,7 @@ for varname in templateData:
                     above, a hyper-schema can include a schema for HTTP headers such as
                     "Accept", "Accept-Charset", "Accept-Language", etc with the "headerSchema"
                     keyword.  A user agent or client application can use information in
-                    this schema, such as an enumerated list of supported laguages, in lieu of
+                    this schema, such as an enumerated list of supported languages, in lieu of
                     making an initial request to start the reactive negotiation process.
                 </t>
                 <t>