I am glad that you have already started a center in small scale and please try to improve it as far as possible. There is no question of doing anything very hastily so please try to make steady, even if slow, progress: Revision history
Diff selection: Mark the radio buttons of the revisions to compare and hit enter or the button at the bottom.
Legend: (cur) = difference with latest revision, (prev) = difference with preceding revision, m = minor edit.