fixing broken links

Author: guptaharshul24

index.md

@@ -15,8 +15,8 @@ permalink: index.html  # Is the only page that doesn't follow the pattern /:path
 > ## Links
 > * [CMSDAS at LPC2026](https://indico.cern.ch/event/1518299/)
 > * [Github repo](https://github.com/FNALLPC/LongExerciseBsMuMu)
-> * [Paper reference](https://cms-results.web.cern.ch/cms-results/public-results/publications/EXO-20-015/index.html)
-> * [EXO-20-015 CADI page](https://cms.cern.ch/iCMS/analysisadmin/cadilines?id=2391&ancode=EXO-20-015&tp=an&line=EXO-20-015)
+> * [Paper reference](https://cms-results.web.cern.ch/cms-results/public-results/publications/BPH-21-006/index.html)
+> * [BPH-21-006 CADI page](https://cms.cern.ch/iCMS/analysisadmin/cadilines?line=BPH-21-006)
 {: .callout}
 
 > ## Prerequisites