Docs: Add missing RST docs
Adds dcos.rst files for all modules lacking documentation.
Change-Id: Ief5594831d31fcb876381a4a3886382fab7d595e
diff --git a/pw_base64/docs.rst b/pw_base64/docs.rst
new file mode 100644
index 0000000..3872e3e
--- /dev/null
+++ b/pw_base64/docs.rst
@@ -0,0 +1,15 @@
+.. _chapter-pw-base64:
+
+.. default-domain:: cpp
+
+.. highlight:: sh
+
+---------
+pw_base64
+---------
+This module provides functions for encoding, decoding, and validating Base64
+data as specified by `RFC 3548 <https://tools.ietf.org/html/rfc3548>`_ and
+`RFC 4648 <https://tools.ietf.org/html/rfc4648>`_.
+
+.. note::
+ The documentation for this module is currently incomplete.