docs: add release notes 0.16.3

yyforyongyu · Roasbeef · commit 4d0136af8c5b · 2023-05-22T18:11:26.000-07:00
diff --git a/docs/release-notes/release-notes-0.16.3.md b/docs/release-notes/release-notes-0.16.3.md
@@ -0,0 +1,10 @@
+# Release Notes
+
+## Mempool
+
+Optimized [mempool
+management](https://github.com/lightningnetwork/lnd/pull/7681) to lower the CPU
+usage.
+
+# Contributors (Alphabetical Order)
+* Yong Yu
