Add links to problems page

Author: capnrefsmmat

docs/symptom-survey/survey-files.md

@@ -18,7 +18,8 @@ access to the individual survey responses. If you have not done so, aggregate da
 
 Important updates for data users, including corrections to data or updates on
 data processing delays, are posted as `OUTAGES.txt` in the SFTP server directory
-where the data is hosted.
+where the data is hosted. Our documentation on [data errors](problems.md)
+explains any issues that may affect your use or interpretation of this data.
 
 ## Table of contents
 {: .no_toc .text-delta}