Each exercise and challenge has an anchor tag and link. Diagnostics still in code.
Each exercise and challenge has an anchor tag and link. Diagnostics still in code.

ehmatthes/intro_programming,chenleo/ipynotebook,nntisapeh/intro_programming,chenleo/ipynotebook,BadWizard/intro_programming,BadWizard/intro_programming,ehmatthes/intro_programming,ehmatthes/intro_programming,BadWizard/intro_programming,nntisapeh/intro_programming,ehmatthes/intro_programming,nntisapeh/intro_programming,BadWizard/intro_programming,nntisapeh/intro_programming,chenleo/ipynotebook,chenleo/ipynotebook