Update index.html.md revised competitive app sec page
Update index.html.md added security lexicon - moved from pmm page, took dates of target segments, clarified who uses security capabilities, added 3 competitors to table
Edited by Ashish Kuthiala
Update index.html.md added security lexicon - moved from pmm page, took dates of target segments, clarified who uses security capabilities, added 3 competitors to table