docs: add a RELEASE.md checklist

RELEASE.md

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+<!--
+Copyright 2025 Columnar Technologies Inc.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+-->
+
+# dbc Release Process
+
+Since we rely on `goreleaser` and automation for managing our releases,
+the actual release process is exceptionally easy:
+
+```shell
+$ git tag -a v0.2.0 -m "dbc v0.2.0 Release"
+$ git push --tags
+```
+
+For pre-releases, we utilize tags such as `alpha` and `beta`. e.g., to
+do a pre-release, you use the following command:
+
+```shell
+$ git tag -a v0.2.0-beta1 -m "dbc v0.2.0 Beta Release"
+$ git push --tags
+```
+
+The automation will take over from the tag being pushed.
+
+## Release Checklist
+
+Before creating and pushing the tags, please consult the following
+checklist of steps:
+
+- [ ] Are the docs up to date with any new/changed features?
+- [ ] Are the auto-complete scripts up to date with changes to the 
+      options and subcommands?
+- [ ] *(Before promoting a pre-release)* Has the pre-release been 
+      manually tested?
+
+Once the above checklist is completed, just push the new tag to
+kick off the release process.