add links as suggested by Yoan

Author: dessyordanova

libraries/radpdfprocessing/model/general-information.md

@@ -20,19 +20,19 @@ This article explains the structure of __RadPdfProcessing__'s document model and
   * [RadFixedPage]({%slug radpdfprocessing-model-radfixedpage%}): IContentRootElement
   * [Annotation]({%slug radpdfprocessing-model-annotations-overview%})
     * ContentAnnotationBase
-      * Widget
-        * PushButtonWidget
-        * SignatureWidget
-        * TwoStatesButtonWidget
-          * RadioButtonWidget
+      * [Widget]({%slug radpdfprocessing-model-annotations-widgets%})
+        * [PushButtonWidget]({%slug radpdfprocessing-model-annotations-widgets%}#pushbuttonwidget-class)
+        * [SignatureWidget]({%slug radpdfprocessing-model-annotations-widgets%}#signaturewidget-class)
+        * [TwoStatesButtonWidget]({%slug radpdfprocessing-model-annotations-widgets%}#twostatesbuttonwidget-class)
+          * [RadioButtonWidget]({%slug radpdfprocessing-model-annotations-widgets%}#radiobuttonwidget-class)
         * VariableContentWidget
 
       * ContentAnnotation
-        * MarkupAnnotation
-          * LineAnnotation
-          * StampAnnotation
-          * TextAnnotation
-          * TextMarkupAnnotation
+        * [MarkupAnnotation]({%slug radpdfprocessing-model-annotations-overview%})
+          * [LineAnnotation]({%slug radpdfprocessing-model-annotations-line%})
+          * [StampAnnotation]({%slug radpdfprocessing-model-annotations-stamp%})
+          * [TextAnnotation]({%slug radpdfprocessing-model-annotations-text%})
+          * [TextMarkupAnnotation]({%slug radpdfprocessing-model-annotations-text-markup%})
 
   * Destination
     * BoundingRectangleFit
@@ -46,10 +46,10 @@ This article explains the structure of __RadPdfProcessing__'s document model and
   * ContentElementBase
     * Clipping
     * PositionContentElement
-      * Form
-      * Image
-      * Path
-      * TextFragment
+      * [Form]({%slug radpdfprocessing-model-form%})
+      * [Image]({%slug radpdfprocessing-model-image%})
+      * [Path]({%slug radpdfprocessing-model-path%})
+      * [TextFragment]({%slug radpdfprocessing-model-textfragment%})
 
 <!-- ![Rad Pdf Processing Model 01](images/RadPdfProcessing_Model_01.png) -->