Update docs/api/covidcast-signals/indicator-combination.md

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

Author: dshemetov

docs/api/covidcast-signals/indicator-combination.md

@@ -191,9 +191,9 @@ The resampling method for each input source is as follows:
 
 ## Compositional Signals: Confirmed Cases and Deaths
 
-* **Earliest issue available:** 7 July, 2020
-* **Number of data revisions since 19 May 2020:** 1 (see [data revision docs](../covidcast_changelog.md#indicator-combination))
-* **Date of last data revision:** 12 October, 2020 (see [data revision docs](../covidcast_changelog.md#indicator-combination))
+* **Earliest issue available:** July 7, 2020
+* **Number of data revisions:** 1 (see [data revision docs](../covidcast_changelog.md#indicator-combination))
+* **Date of last data revision:** October 12, 2020 (see [data revision docs](../covidcast_changelog.md#indicator-combination))
 * **Available for:** county, msa, hrr, state (see [geography coding docs](../covidcast_geography.md))
 * **Time type:** day (see [date format docs](../covidcast_times.md))