Fix "colletion" typo in hyperschema HTTP section

Author: Denis Laxalde

jsonschema-hyperschema.xml

@@ -1289,7 +1289,7 @@ for varname in templateData:
             </t>
             <t>
                 This section provides guidance on how to use each common HTTP method with a link,
-                and how colletion resources impose additional constraints on HTTP POST.
+                and how collection resources impose additional constraints on HTTP POST.
                 Additionally, guidance is provided on hinting at HTTP response header values and
                 describing possible HTTP request headers that are relevant to the given resource.
             </t>