docs: related_projects.rst: fixes xgboost link
@@ -131,7 +131,7 @@ and tasks.
**Other regression and classification**
-- `xgboost https://github.com/dmlc/xgboost` Optimised gradient boosted decision
+- `xgboost <https://github.com/dmlc/xgboost>`_ Optimised gradient boosted decision
tree library.
- `lightning <https://github.com/scikit-learn-contrib/lightning>`_ Fast
