Update index.md

Author: youngdae

index.md

@@ -25,7 +25,7 @@ I am looking for highly motivated students who are interested in working at the
 * [A real-time optimization of a rolling horizon multiperiod ACOPFs](https://github.com/youngdae/rto) (written in Julia)
 * [SELKIE](https://www.gams.com/27/docs/S_SELKIE.html): An agent-based decomposition method for equilibrium problems (written in C)
 * [New JAMS for equilibrium programming](https://www.gams.com/latest/docs/UG_EMP_SharedConstraints.html) (written in Delphi)
-* [Block LU update](https://www.gams.com/51/docs/RN_26.html?search=block%20lu#g2610_PATH): It is being currently used as one of the linear algebra engines for the PATH solver (written in C)
+* [Block LU update](https://www.gams.com/51/docs/RN_26.html?#g2610_PATH): It is being currently used as one of the linear algebra engines for the PATH solver (written in C)