webapp: adding an react HTML component which is 90% of the already existing Markdown component
webapp: adding an react HTML component which is 90% of the already existing Markdown component

tscholl2/smc,sagemathinc/smc,DrXyzzy/smc,DrXyzzy/smc,DrXyzzy/smc,tscholl2/smc,sagemathinc/smc,tscholl2/smc,tscholl2/smc,DrXyzzy/smc,sagemathinc/smc,tscholl2/smc,sagemathinc/smc