Fix typo

README.md

@@ -55,7 +55,7 @@ then of the form:
 [CLS] Sentence [SEP] Flattened table [SEP]
 ```
 
-### Fine-tuning
+### Pre-training
 
 The model was pre-trained on 32 Cloud TPU v3 cores for 1,000,000 steps with maximum sequence length 512 and batch size of 512. 
 In this setup, pre-training on MLM only takes around 3 days. Aditionally, the model has been further pre-trained on a second task (table entailment). See the original TAPAS [paper](https://www.aclweb.org/anthology/2020.acl-main.398/) and the [follow-up paper](https://www.aclweb.org/anthology/2020.findings-emnlp.27/) for more details.