Removed registration summary from master branch, to prepare repo for going...

Removed registration summary from master branch, to prepare repo for going public & storing course materials etc

RegistrationsSoFar.md

-           | CBB | DB | GB | SCB | CF | Total |
------------|-----|----|----|-----|----|-------|
-pre-doc    |  1  |  0 |  0 |  3  |  - |   4   |
-post-doc   |  0  |  0 |  1 |  4  |  - |   5   |
-visitor    |  0  |  0 |  0 |  1  |  0 |   1   |
-tech/staff |  2  |  0 |  1 |  0  |  3 |   6   |
-GTL        |  0  |  0 |  0 |  0  |  0 |   0   |
-Total      |  3  |  0 |  2 |  8  |  3 |   16  |