Fix typos

Author: oschwald

README.dev.md

@@ -15,11 +15,11 @@
 * Create a branch e.g. `horgh/release` and switch to it.
   * `main` is protected.
 * Set the release version and release date in `CHANGELOG.md`. Be sure
-  the version follows [Semantic Versionsing](https://semver.org/).
+  the version follows [Semantic Versioning](https://semver.org/).
 * Commit these changes.
 * Run `dev-bin/release.sh`.
 * Verify the release on the GitHub Releases page.
-* If everything goes well, the authorized releases will receive an email
+* If everything goes well, the authorized releasers will receive an email
   to review the pending deployment. If you are an authorized releaser,
   you will need to approve the release deployment run. If you are not,
   you will have to wait for an authorized releaser to do so.