diff --git a/CHANGES.rst b/CHANGES.rst
new file mode 100644
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@@ -0,0 +1,4 @@
+0.1.0 (2021-11-24)
+------------------
+
+- Initial release
diff --git a/README.md b/README.md
index fc4b449..763e89f 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,7 @@
 # asdf-transform-schemas
-ASDF schemas for transforms.
+
+This package provides ASDF schemas for validating transform tags.  Users should not
+need to install this directly; instead, install an implementation package such
+as asdf-astropy, which includes asdf-transform-schemas as a dependency.
 
 ![CI](https://github.com/asdf-format/asdf-transform-schemas/workflows/CI/badge.svg)