add warnings about doc changes between releases

Signed-off-by: Jessica Yao <jessica@heptio.com>

CHANGELOG.md

@@ -1,13 +1,13 @@
 # Changelog
 
-#### v0.3.3 - 2017-08-10
+#### [v0.3.3](https://github.com/heptio/ark/tree/v0.3.3) - 2017-08-10
   * Treat the first field in a schedule's cron expression as minutes, not seconds
 
-#### v0.3.2 - 2017-08-07
+#### [v0.3.2](https://github.com/heptio/ark/tree/v0.3.2) - 2017-08-07
   * Add client-go auth provider plugins for Azure, GCP, OIDC
 
-#### v0.3.1 - 2017-08-03
+#### [v0.3.1](https://github.com/heptio/ark/tree/v0.3.1) - 2017-08-03
   * Fix Makefile VERSION
 
-#### v0.3.0 - 2017-08-03
+#### [v0.3.0](https://github.com/heptio/ark/tree/v0.3.0) - 2017-08-03
   * Initial Release

README.md

@@ -45,6 +45,12 @@ Clone or fork the Heptio Ark repo:
 git clone git@github.com:heptio/ark.git
 ```
 
+Checkout the appropriate tag for the Ark version you wish to use (e.g. replacing `<VERSION TAG>` with "v0.3.3"):
+```
+git checkout <VERSION TAG>
+```
+You should `git checkout master` only if you're planning on [building the Ark image from scratch][7].
+
 ### 2. Setup
 
 There are two types of Ark instances that work in tandem:

docs/cloud-provider-specifics.md

@@ -1,5 +1,7 @@
 # Cloud Provider Specifics
 
+> NOTE: Documentation may change between releases. See the [Changelog][20] for links to previous versions of this repository and its docs.
+
 While the [Quickstart][0] uses a local storage service to quickly set up Heptio Ark as a demonstration, this document details additional configurations that are required when integrating with the cloud providers below:
 
 * [Setup][12]
@@ -358,4 +360,5 @@ ark restore create nginx-backup --restore-volumes
 [16]: https://cloud.google.com/compute/docs/gcloud-compute
 [17]: https://docs.microsoft.com/en-us/azure/active-directory/develop/active-directory-application-objects
 [18]: https://docs.microsoft.com/en-us/azure/storage/storage-azure-cli
-[19]: https://kubernetes.io/docs/concepts/storage/persistent-volumes/#reclaiming
+[19]: https://kubernetes.io/docs/concepts/storage/persistent-volumes/#reclaiming
+[20]: /CHANGELOG.md