Revert "Add Bootstrap starter template"

This reverts commit bc639fe102a0247ad53827cbcd3e86e4a4b9bb3f.
Revert "Revert "Add Bootstrap starter template""

This reverts commit 5efaf2edecd9bb9ea7537e221364cc92c1384736.
IDP A5 Preliminary Codes
IDP A5 Codes