Fixed the aspect ration on the icon and add links (#763)

Fixed the massive bug in aspect ratio of the icon.  :)

Also added links to the COVID Safe Path apps in both stores.

README.md

@@ -3,8 +3,8 @@
 
   <a href="https://covidsafepaths.org">
     <img
-      height="80"
       width="80"
+      height="67"
       alt="safe paths logo"
       src="./assets/Safe_Paths_Logo.png"
     />
@@ -45,7 +45,7 @@ Safe Paths logs your device’s location once every five minutes and stores 28 d
 
 ### Downloads for COVID Safe Paths
 
-_coming soon!_
+[Google Play](https://play.google.com/store/apps/details?id=org.pathcheck.covidsafepaths) | [Apple Store](https://apps.apple.com/us/app/covid-safe-paths/id1508266966)
 
 ### Downloads for Private Kit (technology beta)