docs: add note about versioning/tags

Author: thekaveman

README.md

@@ -79,6 +79,13 @@ Conventional Commit......................................................Passed
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+## Versioning
+
+Versioning generally follows [Semantic Versioning](https://semver.org/).
+
+In addition to the strict version tag, we also maintain a "latest" tag for each
+major version, e.g. `v1` always points to the latest `v1.x.x` tag.
+
 ## License
 
 [Apache 2.0](LICENSE)