Add release info to applicable docs

Refs https://github.com/saltstack/salt/issues/34089

CONTRIBUTING.md

@@ -140,7 +140,9 @@ key to your GitHub account. Once these steps are completed, the commit signing
 verification will look like the example in GitHub's
 [GPG Signature Verification feature announcement](https://github.com/blog/2144-gpg-signature-verification).
 
-## Release Cadence
+## Release Information
+
+### Release Cadence
 
 There is no defined release schedule for the bootstrap script at this time.
 Typically, SaltStack's release team determines when it would be good to release
@@ -154,6 +156,21 @@ Timing the release usually involves an analysis of the following:
 - Fixes needed for inclusion in an upcoming version of [Salt](https://github.com/saltstack/salt)
 - Length of time since the last bootstrap release
 
+### Release Process
+
+The release process consists of the following steps:
+
+1. Merge in any outstanding PRs that are ready.
+1. Add new contributors to the [AUTHORS](https://github.com/saltstack/salt-bootstrap/blob/develop/AUTHORS.rst) file.
+1. Update the [ChangeLog](https://github.com/saltstack/salt-bootstrap/blob/develop/ChangeLog).
+1. Update the version number in the bootstrap script. The version number is date-based, `<year.month.day>`.
+   For example, version `2018.08.15` was released on August 15, 2018.
+1. Merge the `develop` branch into the `stable` branch.
+1. Update `bootstrap.saltstack.com` with the new stable release. The checksum on the
+   [README page](https://github.com/saltstack/salt-bootstrap/blob/develop/README.rst)
+   should also be updated.
+1. Merge the new stable release into [Salt](https://github.com/saltstack/salt).
+
 ## Adding Support for Other Operating Systems
 
 The following operating systems are detected, but Salt and its dependency

README.rst

@@ -44,6 +44,9 @@ Contributing
 The Salt Bootstrap project is open and encouraging to code contributions. Please review the
 `Contributing Guidelines`_ for information on filing issues, fixing bugs, and submitting features.
 
+The `Contributing Guidelines`_ also contain information about the Bootstrap release cadence and
+process.
+
 Examples
 --------
 

bootstrap-salt.sh

@@ -1,4 +1,9 @@
 #!/bin/sh -
+
+# WARNING: Changes to this file in the salt repo will be overwritten!
+# Please submit pull requests against the salt-bootstrap repo:
+# https://github.com/saltstack/salt-bootstrap
+
 #======================================================================================================================
 # vim: softtabstop=4 shiftwidth=4 expandtab fenc=utf-8 spell spelllang=en cc=120
 #======================================================================================================================