Update crowdin.yml, add files to ignore (numpy#408)

Author: rgommers

crowdin.yml

@@ -5,5 +5,8 @@ preserve_hierarchy: true
 files:
   - source: /content/en/*.md
     translation: /content/%two_letters_code%/%original_file_name%
+    ignore:
+      - /content/en/terms.md
+      - /content/en/diversity_sep2020.md
   - source: /content/en/case-studies/*.md
     translation: /content/%two_letters_code%/case-studies/%original_file_name%