Changes.md : Consolidate duplicate "Fixes" sections

Author: murraystevenson

Changes.md

@@ -19,22 +19,14 @@ Fixes
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 - PathListingWidget : Columns set to automatically stretch now equally share available space when a PathListingWidget's columns are updated via `setColumns()`.
-
-Fixes
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-
 - CyclesShader : Moved the `principled_bsdf.diffuse_roughness` parameter to a new "Diffuse" section in the Node Editor [^1].
+- ContextQuery : Removed `Create Context Query...` menu item from plugs where it was not relevant.
 
 API
 ---
 
 - ScenePlug : Added optional `withGlobalAttributes` arguments to `fullAttributes()` and `fullAttributesHash()`.
 
-Fixes
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-
-- ContextQuery : Removed `Create Context Query...` menu item from plugs where it was not relevant.
-
 Breaking Changes
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