[ADF-1586] Scaled and cropped screenshots (#2707)

docs/analytics.component.md

@@ -1,6 +1,8 @@
 # Activiti Analytics Component
 
-The component shows the charts related to the reportId passed as input
+Shows the charts related to the reportId passed as input
+
+![Analytics-without-parameters](docassets/images/analytics-without-parameters.png)
 
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docs/apps-list.component.md

@@ -2,6 +2,8 @@
 
 Shows all available apps.
 
+![how-filter-apps](docassets/images/how-filter-apps.png)
+
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docs/document-list.component.md

@@ -2,6 +2,8 @@
 
 Displays the documents from a repository.
 
+![Custom columns](docassets/images/custom-columns.png)
+
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