Add note about mathjax tag (#1984)
Add note about mathjax tag (#1984)

Signed-off-by: Chris Warrick <de6f931166e131a07f31c96c765aee08f061d1a5@gmail.com>

techdragon/nikola,TyberiusPrime/nikola,xuhdev/nikola,andredias/nikola,masayuko/nikola,knowsuchagency/nikola,atiro/nikola,xuhdev/nikola,getnikola/nikola,andredias/nikola,s2hc-johan/nikola,xuhdev/nikola,andredias/nikola,masayuko/nikola,xuhdev/nikola,okin/nikola,getnikola/nikola,x1101/nikola,knowsuchagency/nikola,gwax/nikola,gwax/nikola,atiro/nikola,TyberiusPrime/nikola,s2hc-johan/nikola,s2hc-johan/nikola,okin/nikola,wcmckee/nikola,knowsuchagency/nikola,okin/nikola,atiro/nikola,berezovskyi/nikola,x1101/nikola,techdragon/nikola,wcmckee/nikola,x1101/nikola,getnikola/nikola,berezovskyi/nikola,TyberiusPrime/nikola,wcmckee/nikola,berezovskyi/nikola,techdragon/nikola,masayuko/nikola,gwax/nikola,okin/nikola,getnikola/nikola