GEARPUMP-244 Fixed the broken link of IDE setup guide
GEARPUMP-244 Fixed the broken link of IDE setup guide

Author: Willem Jiang <willem.jiang@gmail.com>

Closes #117 from WillemJiang/branch_GEARPUMP-244.

manuzhang/incubator-gearpump,manuzhang/incubator-gearpump,manuzhang/incubator-gearpump,manuzhang/incubator-gearpump,manuzhang/incubator-gearpump