Update notes

Author: tcharding

notes.md

@@ -2,9 +2,8 @@
 
 ## TODOs
 
-- Consider testing against a mainnet node?
+- Scrape all the integration tests from Bitcoin Core python code and
+  run them here.
+
+- Change in-specific to non-specific
 
-/// An arbitrary mainnet block
-const BLOCK: u64 = 810431;
-/// Transaction vout==1 from block 810431.
-const TXID = "88177263cf62ce1974465fe5a07adf8e3ee1b2eb784e8f0733d0c5a0ab52fc8c";