Docs/versioning (#64)

Author: thepassle

README.md

@@ -42,7 +42,7 @@ In order to allow tools to find npm packages with custom element manifests witho
 ## Schema Versioning
 
 The schema has a `schemaVersion` field in the top-level object to facilitate
-evolution of the schema. The current schema version is `0.1.0`.
+evolution of the schema. The schema follows [semver](https://semver.org/) versioning, the current schema version is `0.1.0`.
 
 This version will not always match the npm package version, as some changes to the npm package might not have changes to the schema. We will publish a list of schema versions and their associated npm versions and git tags.