A Supplement to the act of July 9, 1976 (P. L. 857, No. 154), entitled "An act providing for the capital budget for the fiscal year 1976-1977," itemizing an additional public improvement project to be constructed by the Department of General Services, together with its estimated financial cost, authorizing the incurring of debt for the project without approval of the electors to complete the project, stating the estimated useful life of such project and making an appropriation.