combined obs readme updated

baselines/combined_tree_local_conflict_obs/README.md

@@ -14,8 +14,8 @@ The observation is defined in "neurips2020-flatland-baselines/envs/flatland/obse
 
 To combine multiple observations, instead of directly putting the observation settings under "observation_config", use the names of the observations you want to combine as keys to provide the corresponding observation configs (see example).
 
-An example config is located in "neurips2020-flatland-baselines/baselines/global_density_obs/sparse_small_apex_maxdepth2_spmaxdepth30.yaml" and can be run with
-`python ./train.py -f baselines/global_density_obs/sparse_small_apex_maxdepth2_spmaxdepth30.yaml`  
+An example config is located in "neurips2020-flatland-baselines/baselines/combined_tree_local_conflict_obs/sparse_small_apex_maxdepth2_spmaxdepth30.yaml" and can be run with
+`python ./train.py -f baselines/combined_tree_local_conflict_obs/sparse_small_apex_maxdepth2_spmaxdepth30.yaml`  
 
 ### 📦 Implementation Details
 
@@ -28,7 +28,6 @@ Since this observations is meant as a helper to easily explore combinations of o
 
 ### 🔗 Links
 
-* [Ape-X Paper – Distributed Prioritized Experience Replay (Horgan et al.)](https://arxiv.org/abs/1803.00933)
 * [W&B report for test run](https://app.wandb.ai/masterscrat/flatland/reports/Tree-and-Conflict-Obs-|-sparse-small_v0--VmlldzoxNTc4MzU)