Yoan/nesting xbojects (#630)

* Nested Form XObjects note.

* Fixed Slug

Author: YoanKar

libraries/radpdfprocessing/model/form.md

@@ -65,9 +65,10 @@ __Example 2__ demonstrates how to use one of the factory methods of the __Conten
           
 >You can add content to the form by setting its FormSource property. The API allows you also to directly pass the FormSource to a method which will automatically generate a form in the document content. For more information on this topic, check the [FormSource]({%slug radpdfprocessing-model-formsource-overview%}) article.
 
->There’s no nesting limit for [Form XObjects[({%slug radpdfprocessing-model-form%})], but PDF viewers may restrict depth to avoid memory or performance issues and improve responsiveness, which can affect rendering depending on the viewer.
 
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+>There’s no nesting limit for [Form XObjects]({%slug radpdfprocessing-model-form%}), but PDF viewers may restrict depth to avoid memory or performance issues and improve responsiveness, which can affect rendering depending on the viewer.
+
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 ### Modifying Form Properties
 
 You can modify a __Form__ element using the properties the class exposes. The properties are listed in the [Public API](#public-api) section.  

libraries/radpdfprocessing/model/formsource/overview.md

@@ -43,7 +43,7 @@ The FormSource class inherits from the IContentRootElement interface. This inher
 
 **Example 2** shows you how you can insert a content into a FormSource object using FixedContentEditor.
 
->There’s no nesting limit for [Form XObjects[({%slug radpdfprocessing-model-form%})], but PDF viewers may restrict depth to avoid memory or performance issues and improve responsiveness, which can affect rendering depending on the viewer.
+>There’s no nesting limit for [Form XObjects]({%slug radpdfprocessing-model-form%}), but PDF viewers may restrict depth to avoid memory or performance issues and improve responsiveness, which can affect rendering depending on the viewer.
 
 #### __[C#] Example 2: Add content to a FormSource__