links need to be updated to modeldb.science

[ramcdougal]

• [x] twitter bio -- need both link and update to text
• [ ] ModelDBRepository GitHub
• [ ] inside NEURON

[ramcdougal]

First 6 pages of ModelDB Repository GitHub repos have been updated... except for those which are alternate models, which don't work yet

[ramcdougal]

Twitter bio and link has been updated. The profile picture should be changed to say ModelDB not SenseLab.

Changing the twitter handle unfortunately broke the new model display on the old site.