review fixes

Author: ecmel

CHANGELOG.md

@@ -14,7 +14,6 @@ All notable changes to the **kdb VS Code extension** are documented in this file
 - Improved table headers in the results tab
 - Show query progress for KDB+ connections
 - Added notification for data source refresh
-- Updated screenshots and documentation
 
 ### Fixes
 

README.md

@@ -605,7 +605,9 @@ The following features of [AxLibraries](https://code.kx.com/developer/libraries/
 
 ### Grammar of Graphics
 
-Calling `.qp.display` displays the plot locally.
+Grammar of Graphics (GG) is a scripted visualization library for kdb+. For more information refer to the [documentation](https://code.kx.com/developer/ggplot/).
+
+When executing GG scripts, calling `.qp.display` displays the plot locally.
 
 ![gg-plot](https://github.com/KxSystems/kx-vscode/blob/main/img/gg-plot.png?raw=true)