Update docs/explanations/curator_data_model.md

Co-authored-by: Copilot <[email protected]>

Author: andrewelamb

docs/explanations/curator_data_model.md

@@ -225,7 +225,7 @@ JSON Schema output:
 
 ### Pattern
 
-The regex pattern this attribute match. The type of this attribute must be `string` or `string_list`. See [pattern](https://json-schema.org/understanding-json-schema/reference/https://json-schema.org/understanding-json-schema/reference/regular_expressions#regular-expressions) The value of this column will be appear as the `pattern` of this attribute in the JSON Schema. Must be a legal regex pattern as determined by the python `re` library.
+The regex pattern this attribute must match. The type of this attribute must be `string` or `string_list`. See [pattern](https://json-schema.org/understanding-json-schema/reference/https://json-schema.org/understanding-json-schema/reference/regular_expressions#regular-expressions) The value of this column will appear as the `pattern` of this attribute in the JSON Schema. Must be a legal regex pattern as determined by the python `re` library.
 
 Data Model: