Merge pull request #282 from Akvannortwick/Geo-changes-to-Doctor-Visits-in-changelog

Update Changelog for DV

Author: krivard

docs/api/covidcast-signals/doctor-visits.md

@@ -8,8 +8,8 @@ grand_parent: COVIDcast Epidata API
 {: .no_toc}
 
 * **Source name:** `doctor-visits`
-* **Number of data revisions since 19 May 2020:** 0
-* **Date of last change:** Never
+* **Number of data revisions since 19 May 2020:** 1
+* **Date of last change:** 9 November 2020
 * **Available for:** county, hrr, msa, state (see [geography coding docs](../covidcast_geography.md))
 
 This data source is based on information about outpatient visits, provided to us

docs/api/covidcast_changelog.md

@@ -25,6 +25,9 @@ changes, data corrections, and other information relevant to API users.
 
 ## Sources and Signals
 ### `doctor-visits`
+#### 9 November 2020
+We went from a custom geo mapping file (for aggregating from county->(msa, hrr, state)) to a central geo file based on rigorously sourced US census data.
+
 ### `fb-survey`
 
 #### 3 June 2020