Add 2.14.0 relnotes to RELEASE.md

Author: arcra

RELEASE.md

@@ -1,3 +1,23 @@
+# Release 2.14.0
+
+The 2.14 minor series tracks TensorFlow 2.14.
+
+## Features
+
+- Small data table and step selector usability and accessibility improvements (#6372, #6409, #6410, #6431)
+
+## Bug Fixes
+
+- Embedding Projector plugin improvements
+  - Fix tSNE tweaking hyperparams (#6320, thanks @alicialics)
+  - Some visualization and usability improvements (#6373, #6326, #6325, #6429, thanks @alicialics)
+- Graph plugin: Fix rendering issue for tensors with zero dimension size (#6420)
+- HParams plugin: A couple fixes related to boolean and NaN values (#6393, #6496)
+
+## Breaking Changes
+
+- Drops support for Python 3.8.
+
 # Release 2.13.0
 
 The 2.13 minor series tracks TensorFlow 2.13