update docs for release 0.8 (#802)

Author: kannon92

README.md

@@ -58,7 +58,7 @@ efficiently and improve ML training goodput.
 To install the latest release of JobSet in your cluster, run the following command:
 
 ```shell
-kubectl apply --server-side -f https://github.com/kubernetes-sigs/jobset/releases/download/v0.7.2/manifests.yaml
+kubectl apply --server-side -f https://github.com/kubernetes-sigs/jobset/releases/download/v0.8.0/manifests.yaml
 ```
 
 The controller runs in the `jobset-system` namespace.

site/config.toml

@@ -92,7 +92,7 @@ ignoreFiles = []
   # The major.minor version tag for the version of the docs represented in this
   # branch of the repository. Used in the "version-banner" partial to display a
   # version number for this doc set.
-  version = "v0.7.2"
+  version = "v0.8.0"
 
   # Flag used in the "version-banner" partial to decide whether to display a
   # banner on every page indicating that this is an archived version of the docs.