Update with task list.

lm_eval/tasks/xnli/README.md

+# XNLI
+
+### Paper
+
+Title: `XNLI: Evaluating Cross-lingual Sentence Representations`
+
+Abstract: https://arxiv.org/abs/1809.05053
+
+Based on the implementation of @yongzx (see https://github.com/EleutherAI/lm-evaluation-harness/pull/258)
+
+Prompt format (same as XGLM and mGPT):
+
+sentence1 + ", right? " + mask = (Yes|Also|No) + ", " + sentence2
+
+Predicition is the full sequence with the highest likelihood.
+
+Language specific prompts are translated word-by-word with Google Translate
+and may differ from the ones used by mGPT and XGLM (they do not provide their prompts).
+
+Homepage: https://github.com/facebookresearch/XNLI
+
+
+### Citation
+
 """
 @InProceedings{conneau2018xnli,
   author = "Conneau, Alexis
@@ -15,3 +39,40 @@
   location = "Brussels, Belgium",
 }
 """
+
+### Groups and Tasks
+
+#### Groups
+
+* `xnli`
+
+#### Tasks
+
+* `xnli_ar`: Arabic
+* `xnli_bg`: Bulgarian
+* `xnli_de`: German
+* `xnli_el`: Greek
+* `xnli_en`: English
+* `xnli_es`: Spanish
+* `xnli_fr`: French
+* `xnli_hi`: Hindi
+* `xnli_ru`: Russian
+* `xnli_sw`: Swahili
+* `xnli_th`: Thai
+* `xnli_tr`: Turkish
+* `xnli_ur`: Urdu
+* `xnli_vi`: Vietnamese
+* `xnli_zh`: Chinese
+
+### Checklist
+
+For adding novel benchmarks/datasets to the library:
+* [ ] Is the task an existing benchmark in the literature?
+  * [ ] Have you referenced the original paper that introduced the task?
+  * [ ] If yes, does the original paper provide a reference implementation? If so, have you checked against the reference implementation and documented how to run such a test?
+
+
+If other tasks on this dataset are already supported:
+* [ ] Is the "Main" variant of this task clearly denoted?
+* [ ] Have you provided a short sentence in a README on what each new variant adds / evaluates?
+* [ ] Have you noted which, if any, published evaluation setups are matched by this variant?