Update README.md

Added 2.13.0.0 release info

Author: willyborankin

README.md

@@ -24,6 +24,7 @@ with all official supported repository plugins:
 ## Compatibility Matrix
 | OpenSearch |  Plugin | Release date |
 |------------:|--------:|-------------:|
+|    2.13.0 | 2.13.0.0 | Mai 09, 2024 | 
 |    2.12.0 | 2.12.0.0 | Mai 09, 2024 | 
 |    2.11.1 | 2.11.1.0 | Mai 09, 2024 | 
 |     2.9.0 | 2.9.0.1 | Jul 29, 2023 |