Update jsonschema-core.xml

Fix typo

Co-authored-by: Karen Etheridge <ether@cpan.org>

Author: Relequestual

jsonschema-core.xml

@@ -1853,7 +1853,7 @@
                     <t>
                         When a reference applicator is dereferenced as part of the bundling process, the Schema Resource
                         MUST NOT be embedded by replacing the schema object from which it was referenced, or by wrapping
-                        in other applicator keywords. In stead, a bundled Schema Resource MUST be located in `$defs`,
+                        in other applicator keywords. Instead, a bundled Schema Resource MUST be located in `$defs`,
                         where the key is the `$id` of the Schema Resource, which MUST then be referenced using `$ref`.
                     </t>
                 </section>