The following video will guide you through the process of editing wiki content, viewing wiki history and my contribution.
Editing Wiki Content
1. Click on the name of a wiki topic to edit a wiki page.
(Click to enlarge the image)
2. Click "Edit Wiki Content" to begin editing a particular wiki page.
3. Add desired text, images, links, etc., to the wiki page via the content editor.
4. Click "Submit" to save your content.
5. View your wiki page modifications on the wiki topic page.
Viewing History
1. After a wiki page has been created, you can view the page's history by clicking on the action link next to the wiki page's name. Click "History" from the menu.
2. View a list of page versions and their authors on the Page History page. 
3. Check the checkboxes of page versions and click "Compare Versions" to view page changes. 
4. On the Page Comparison page, view details regarding changes that were made. Click "Legend" to understand how one version was changed in comparison to other versions of the wiki page.
5. View the legend tab to understand the details of the various changes that were made. 
Viewing My Contribution
1. Click on "My Contribution" on the wiki topic page to view your own contributions. 
2. Review all pages and versions that you have modified on the My Contribution page. Note the Page Version and User's Modifications columns. View changes by click on particular items listed below the column titles. 
3. To view a summary of your contributions, view the Participation Summary section of the page. 