Fix some typos (#592)

Found using the `typos` utility

Author: sirosen

CHANGELOG.rst

@@ -453,7 +453,7 @@ Unreleased
 ------
 
 - Update vendored schemas: renovate (2022-07-13)
-- Update check-github-worfklows match rule to exclude subdirectories of the
+- Update check-github-workflows match rule to exclude subdirectories of the
   ``.github/workflows/`` directory. (:issue:`113`)
 
 0.17.0

docs/usage.rst

@@ -238,7 +238,7 @@ checked. The following transforms are supported:
 - ``azure-pipelines``:
     "Unpack" compile-time expressions for Azure Pipelines files, skipping them
     for the purposes of validation. This transformation is based on Microsoft's
-    lanaguage-server for VSCode and how it handles expressions
+    language-server for VSCode and how it handles expressions
 
 - ``gitlab-ci``:
     Handle ``!reference`` tags in YAML data for gitlab-ci files. This transform