The building Hospicelink operates out of at 2145 Highland Ave. S. includes about 15,000 square feet of additional space the company could move into should it outgrow its current home. I reported earlier Monday that Hospicelink moved into about 7,000 square feet of space on Highland Avenue on Sept. 1. The Birmingham-based company, which allows hospices to order medical equipment online, previously operated out of the Intermark Group's building on 25th Street North. Later Monday, I spoke with Hospicelink…