make Teaching link external
make Teaching link external

kschwarzberg/gregcaporaso.github.com-1,Kleptobismol/gregcaporaso.github.com-1,anderspitman/gregcaporaso.github.com,johnchase/lab-website,Kleptobismol/gregcaporaso.github.com-1,johnchase/lab-website,kschwarzberg/gregcaporaso.github.com-1,gregcaporaso/gregcaporaso.github.com,anderspitman/gregcaporaso.github.com,gregcaporaso/gregcaporaso.github.com