Add missing changelog PR numbers

CHANGELOG.md

@@ -144,14 +144,14 @@ Released with 1.0.0-beta.37 code base.
 - Add revert reason support to sendSignedTransaction (#3345)
 - ENS module extended with the possibility to add a custom registry (#3301)
 - Missing ENS Registry methods and Resolver.supportsInterface method added (#3325)
-- Add optional gas type to AbiItem typescript definitions (for ABIs generated by Vyper)
+- Add optional gas type to AbiItem typescript definitions (for ABIs generated by Vyper) (#3437)
 - Add görli testnet ENS registry to the known registries (#3252)
 - Add auto-reconnect option for Websockets (#3092, #1085, #1391, #1558, #1852, #1646)
 
 ### Changed
 
 - Ensure '0x' prefix is existing for Accounts.sign and Accounts.privateKeyToAccount (#3041)
-- Repository cleanup
+- Repository cleanup (#3443)
   - Removed old `docs/_build` folder
   - Removed old bower and meteor artifacts
   - Moved logo assets to own folder
@@ -163,7 +163,7 @@ Released with 1.0.0-beta.37 code base.
 - Add missing subscription.on('connected') TS type definition (#3319)
 - Add missing bignumber.js dependency for TS types (#3386)
 - Upgrade swarm-js to 0.1.40 to remove npm vulnerability warning (#3399)
-- Upgrade devDeps to resolve security warnings
+- Upgrade devDeps to resolve security warnings (#3464)
   - dtslint 0.4.2 => 3.4.1
   - definitelytyped-header-parser 1.0.1 => 3.9.0
 - Race-condition when subscribing to historical logs as first client request (#3389)