Added handles, a micro-short bio. and photo
Added handles, a micro-short bio. and photo

I will probably increase the bio, but this should do for the time being.
OWASP/owasp-summit-2017,OWASP/owasp-summit-2017,OWASP/owasp-summit-2017,mkasmani/owasp-devseccon-summit,OWASP/owasp-summit-2017,talargoni/owasp-summit-2017,mkasmani/owasp-devseccon-summit,mkasmani/owasp-devseccon-summit,mkasmani/owasp-devseccon-summit,talargoni/owasp-summit-2017,talargoni/owasp-summit-2017