Add link to documentation
diff --git a/README.md b/README.md
index 44d632a..010e3aa 100644
--- a/README.md
+++ b/README.md
@@ -130,6 +130,9 @@
   with the test suite. The test suite dependencies are minimal and the
   same as the library's.
 
+## Documentation
+
+Full API documentation is at https://www.securitytheory.com/qcbor-docs/
 
 ## Comparison to TinyCBOR