[SG] Fix changelog

Author: sebastienlagarde

com.unity.shadergraph/CHANGELOG.md

@@ -6,17 +6,14 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 
 ## [10.8.0] - 2021-09-20
 
-Version Updated
-The version number for this package has increased due to a version update of a related graphics package.
-
 ### Fixed
- - Fixed ShaderGraph errors caused by very large or very small default values for color or float properties [1313932]
- - Fixed a ShaderGraph warning when connecting a node using Object Space BiTangent to the vertex stage [1361512] (https://issuetracker.unity3d.com/issues/shader-graph-cross-implicit-truncation-of-vector-type-errors-are-thrown-when-connecting-transform-node-to-vertex-block)
+- Fixed ShaderGraph errors caused by very large or very small default values for color or float properties [1313932]
+- Fixed a ShaderGraph warning when connecting a node using Object Space BiTangent to the vertex stage [1361512] (https://issuetracker.unity3d.com/issues/shader-graph-cross-implicit-truncation-of-vector-type-errors-are-thrown-when-connecting-transform-node-to-vertex-block)
 
 ## [10.7.0] - 2021-07-02
 
 ### Added
-  - Added a ShaderGraph animated preview framerate throttle.
+- Added a ShaderGraph animated preview framerate throttle.
 
 ### Fixed
 - Fixed SubGraph SamplerState property defaults not being respected [1336119]