Add Release Date for v4.7.1 Release

Author: andrewlecuyer

docs/content/releases/4.7.1.md

@@ -5,7 +5,7 @@ draft: false
 weight: 49
 ---
 
-Crunchy Data announces the release of PGO, the Postgres Operator 4.7.1 on July DD, 2021.
+Crunchy Data announces the release of PGO, the Postgres Operator 4.7.1 on July 29, 2021.
 
 The PostgreSQL Operator is released in conjunction with the [Crunchy Container Suite](https://github.com/CrunchyData/crunchy-containers/).