Merge pull request #1003 from ExpressionEngine/add-mimes-service-docs

Updated nav for mime service to be added

Author: TomJaeger

docs/toc_sections/_advanced_usage_toc.yml

@@ -338,6 +338,8 @@
           href: development/services/encrypt.md
         - name: Event Service
           href: development/services/event.md
+        - name: MimeType Service
+          href: development/services/mime.md
         - name: CP/FilePicker Service
           href: development/services/filepicker.md
         - name: CP/Filter Service