new section in our wiki

Hi Folks


I added a section to the beginning of our wiki that points people to advice on how to make content usable for COGA


https://www.w3.org/WAI/PF/cognitive-a11y-tf/wiki/Main_Page#Welcome_to_the_WIKI_for_the_Cognitive_and_Learning_Disabilities_Accessibility_Task_Force_.28COGA.29

I also tiedied up the the timelines 


and cut some of the old content


Please let me know if you thing there should be more changes 




All the best

Lisa Seeman

LinkedIn, Twitter