Noted report of missing material in the extending & embedding manual,
as reported by Clay Spence <cspence@sarnoff.com>.
diff --git a/Doc/TODO b/Doc/TODO
index f182000..2c0fc58 100644
--- a/Doc/TODO
+++ b/Doc/TODO
@@ -2,6 +2,11 @@
===============================
+* Describe implementing types in C, including use of the 'self'
+ parameter to the method implementation function. (Missing material
+ mentioned in the Extending & Embedding manual, section 1.1; problem
+ reported by Clay Spence <cspence@sarnoff.com>.)
+
* Update the pickle documentation to describe all of the current
behavior; only a subset is described. __reduce__, etc.