Update README.md

fixing .md

Author: fredblain

wmt20/README.md

@@ -14,24 +14,21 @@ for **Task 2**, use the following scripts:
 * sentence-level HTER:  `python sent_evaluate.py -h` 
 * word-level HTER:  `python word_evaluate.py -h`
 
-for **Task 3**, use the following scripts[^1]:
+for **Task 3**, use the following scripts (under MT License, source: [Deep-Spin](https://github.com/deep-spin/qe-evaluation)):
 * MQM **score**: `python eval_document_mqm.py -h`
 * MQM **annotations**: `python eval_document_annotations.py -h`
 
-Once you have checked that your system output on the dev data is correctly read by the right script, you can submit it using the CODALAB page corresponding to your subtask.
+Once you have checked that your system output on the dev data is correctly read by the right script, you can submit it using the CODALAB page corresponding to your subtask (see below).
 
 ### Submission platforms
 
 Predicitons should be submitted to a CODALAB page for each subtask:
 
-Task 1,  [sentence-level DA](https://competitions.codalab.org/competitions/24447)
+Task 1,  [sentence-level DA](https://competitions.codalab.org/competitions/24447)  
 Task 1, [sentence-level DA **multilingual**](https://competitions.codalab.org/competitions/24447)
 
-Task 2, [sentence-level HTER](https://competitions.codalab.org/competitions/24515)
+Task 2, [sentence-level HTER](https://competitions.codalab.org/competitions/24515)  
 Task 2, [word-level HTER](https://competitions.codalab.org/competitions/24728)
 
-Task 3, [doc-level MQM **score**](https://competitions.codalab.org/competitions/24762)
+Task 3, [doc-level MQM **score**](https://competitions.codalab.org/competitions/24762)  
 Task 3, [doc-level **annotations**](https://competitions.codalab.org/competitions/24763)
-
-[^1]:  under MT License (source: [Deep-Spin](https://github.com/deep-spin/qe-evaluation))
-