sdk: add changelog entry

raiden-ts/CHANGELOG.md

@@ -3,6 +3,7 @@
 ## [Unreleased]
 ### Fixed
 - [#2094] Fix TransferState's timestamps missing
+- [#2174] Fix a few transport issues triggered on high-load scenarios
 
 ### Added
 - [#2044] Introduce PouchDB (IndexedDB/leveldown) as new persistent state storage backend
@@ -13,14 +14,15 @@
 [#2044]: https://github.com/raiden-network/light-client/issues/2044
 [#2094]: https://github.com/raiden-network/light-client/issues/2094
 [#2158]: https://github.com/raiden-network/light-client/issues/2158
+[#2174]: https://github.com/raiden-network/light-client/pull/2174
 
 ## [0.11.1] - 2020-08-18
 ### Changed
 - [#2049] Target ES2019 (NodeJS 12+) on SDK builds
 - [#2054] Update to Raiden contracts `v0.37.1`
 
 [#2049]: https://github.com/raiden-network/light-client/issues/2049
-[#2054]: https://github.com/raiden-network/light-client/pulls/2054
+[#2054]: https://github.com/raiden-network/light-client/pull/2054
 
 
 ## [0.11.0] - 2020-08-04