Add new results for word sense disambiguation (sebastianruder#605)

* Add new results for word sense disambiguation

Add new results for EMNLP 2021 Findings Paper [Improved Word Sense Disambiguation with Enhanced Sense Representations](https://aclanthology.org/2021.findings-emnlp.365.pdf).

* Update word_sense_disambiguation.md

Author: sonodasong

english/word_sense_disambiguation.md

@@ -47,6 +47,9 @@ The main evaluation measure is F1-score.
 |SparseLMMS+WNGC | 79.6 | 77.3 | 73.0 | 79.4 | 81.3 | [[19]](https://www.aclweb.org/anthology/2020.emnlp-main.683/)[[code]](https://github.com/begab/sparsity_makes_sense) |
 |ARES | 78.0 | 77.1 | 71.0 | 77.3 | 83.2 | [[20]](https://www.aclweb.org/anthology/2020.emnlp-main.285/)|
 |ESCHER | 81.7 | 77.8 | 76.3 | 82.2 | 83.2 | [[21]](https://aclanthology.org/2021.naacl-main.371/)|
+|ESR | 81.3 | 79.9 | 77.0 | 81.5 | 84.1 | [[22]](https://aclanthology.org/2021.findings-emnlp.365/)[[code]](https://github.com/nusnlp/esr) |
+|ESR+WNGC | 82.5 | 80.2 | 78.5 | 82.3 | 85.3 | [[22]](https://aclanthology.org/2021.findings-emnlp.365/)[[code]](https://github.com/nusnlp/esr) |
+
 ### Knowledge-based:
 
 | Model           | All | Senseval 2 |Senseval 3 |SemEval 2007 |SemEval 2013 |SemEval 2015 |  Paper / Source |
@@ -102,6 +105,8 @@ Note: 'All' is the concatenation of all datasets, as described in [10] and [12].
 
 [21] [ESC: Redesigning WSD with Extractive Sense Comprehension](https://aclanthology.org/2021.naacl-main.371/)
 
+[22] [Improved Word Sense Disambiguation with Enhanced Sense Representations](https://aclanthology.org/2021.findings-emnlp.365/)
+
 ## WSD Lexical Sample task:
 
 Above task is called All-words WSD because the systems attempt to disambiguate all of the words in a document, while there is another task which is called