Added four signals to jhu-csse documentation

Added below, which were not listed in documentation:
confirmed_7dav_cumulative_num
confirmed_7dav_cumulative_prop
deaths_7dav_cumulative_num
deaths_7dav_cumulative_prop

Author: tinatownes

docs/api/covidcast-signals/jhu-csse.md

@@ -23,14 +23,18 @@ University.
 
 | Signal and 7-day average signal | Description |
 |---|---|
-| `confirmed_cumulative_num` | Cumulative number of confirmed COVID-19 cases <br/> **Earliest date available:** 2020-01-22 & 2020-02-20 |
-| `confirmed_cumulative_prop` | Cumulative number of confirmed COVID-19 cases per 100,000 population <br/> **Earliest date available:** 2020-01-22 & 2020-02-20 |
+| `confirmed_cumulative_num` and `confirmed_7dav_cumulative_num` | Cumulative number of confirmed COVID-19 cases <br/> **Earliest date available:** 2020-01-22 & 2020-02-20 |
+| `confirmed_cumulative_prop` and `confirmed_7dav_cumulative_prop` | Cumulative number of confirmed COVID-19 cases per 100,000 population <br/> **Earliest date available:** 2020-01-22 & 2020-02-20 |
 | `confirmed_incidence_num` and `confirmed_7dav_incidence_num` | Number of new confirmed COVID-19 cases, daily <br/> **Earliest date available:** 2020-01-22 & 2020-02-20 |
 | `confirmed_incidence_prop` and `confirmed_7dav_incidence_prop` | Number of new confirmed COVID-19 cases per 100,000 population, daily <br/> **Earliest date available:** 2020-01-22 & 2020-02-20 |
-| `deaths_cumulative_num` | Cumulative number of confirmed deaths due to COVID-19 <br/> **Earliest date available:** 2020-01-22 & 2020-02-20 |
-| `deaths_cumulative_prop` | Cumulative number of confirmed due to COVID-19, per 100,000 population <br/> **Earliest date available:** 2020-01-22 & 2020-02-20 |
+| `deaths_cumulative_num` and `deaths_7dav_cumulative_num` | Cumulative number of confirmed deaths due to COVID-19 <br/> **Earliest date available:** 2020-01-22 & 2020-02-20 |
+| `deaths_cumulative_prop` and `deaths_7dav_cumulative_prop` | Cumulative number of confirmed due to COVID-19, per 100,000 population <br/> **Earliest date available:** 2020-01-22 & 2020-02-20 |
 | `deaths_incidence_num` and `deaths_7dav_incidence_num` | Number of new confirmed deaths due to COVID-19, daily <br/> **Earliest date available:** 2020-01-22 & 2020-02-20 |
 | `deaths_incidence_prop` and `deaths_7dav_incidence_prop` | Number of new confirmed deaths due to COVID-19 per 100,000 population, daily <br/> **Earliest date available:** 2020-01-22 & 2020-02-20 |
+| `confirmed_7dav_cumulative_num` | Cumulative number of confirmed COVID-19 cases <br/> **Earliest date available:** 2020-01-22 & 2020-02-20 |
+| `confirmed_7dav_cumulative_prop` | Cumulative number of confirmed COVID-19 cases <br/> **Earliest date available:** 2020-01-22 & 2020-02-20 |
+| `deaths_7dav_cumulative_num` | Cumulative number of confirmed COVID-19 cases <br/> **Earliest date available:** 2020-01-22 & 2020-02-20 |
+| `deaths_7dav_cumulative_prop` | Cumulative number of confirmed COVID-19 cases <br/> **Earliest date available:** 2020-01-22 & 2020-02-20 |
 
 These signals are taken directly from the JHU CSSE [COVID-19 GitHub
 repository](https://github.com/CSSEGISandData/COVID-19) without changes. The