added SEO tools
a simple style changes
porter metadata of battle of the sexes
porter metadata of asset market
Update Instructions.html
Merge branch 'master' of github.com:oTree-org/oTree into wikikeywords
moved metatadata of asset_market, bargaining beauty contes, bertrand competition, common value acution, cournot competition, demo game and dictator
ported all meta data to wiki keywords structure