Update README.md
Fixed a misspell in annotation name.
@@ -48,7 +48,7 @@ status: RESERVED
## Assigning a static IP to an Ingress
You can now add the static IP from the previous step to an Ingress,
-by specifying the `kubernetes.io/global-static-ip-name` annotation,
+by specifying the `kubernetes.io/ingress.global-static-ip-name` annotation,
the example yaml in this directory already has it set to `test-ip`
```console
