Update utility.md

Author: FriedrichWeinmann

documentation/documents/psframework/utility.md

@@ -7,22 +7,22 @@ title: PSFramework: Utility
 
 ## Synopsis
 
-Utility is the catch-all category for individual commands that do not fit into any more specific category or would be a category ontu themselves.
+Utility is the catch-all category for individual commands and features that do not fit into any more specific category or would be a category ontu themselves.
 
 ## Commands
 
 ### Select-PSFObject
 
 `Select-PSFObject` completely replaces `Select-Object`, offering all of its functionality, but offering greater input comfort and more readable code by avoiding hashtables for simple operations. It also adds the ability to extend an object, rather than building a new object, fully replacing `Add-Member`.
 
- - [Select-PSFObject](utility/select-psfobject.html)
++ [Select-PSFObject](utility/select-psfobject.html)
 
 ### ConvertFrom-PSFArray
 
 `ConvertFrom-PSFArray` converts properties on objects that are collections into a single string.
 This helps with exporting as flat data, e.g. when exporting as csv.
 
- - [ConvertFrom-PSFArray](utility/convertfrom-psfarray.html)
++ [ConvertFrom-PSFArray](utility/convertfrom-psfarray.html)
 
 ### Argument Transformation Attributes
 
@@ -33,10 +33,14 @@ This is where Argument Transformation Attributes can shine:
 
 + [ScriptTransformation](utility/ScriptTransformation.html): Implement your own conversion logic in script.
 
+### PSFramework Hashtables
+
+Hashtables are awesome!
+But they could be even better.
+Introducing the PSFramework Hashtables, extending hashtables to include default values, passing through unknown key or even dynamically calculating the result of an unexpected key!
+
++ [PSFramework Hashtables](utility/psfhashtables.html)
+
 ## Notes
 
 [Back to PSFramework](https://psframework.org/documentation/documents/psframework.html)
-
-| Version | 1.1 |
-| Written on: | 2018-10-23 |
-| Updated on: | 2019-11-07 |