Update README.md

README.md

@@ -59,7 +59,7 @@ of discourse analysis and coherence.
 
 1. **Sentence Positioning**
    - **Datasets Sources**: Arxiv, Wikipedia, Rocstory
-   - **Description**: Determine the correct placement of a sentence within a given context of five sentences. To form the input when training classifiers encode the five sentences to vector representations $x_i$. As input to the classfier we include $x_1$ and the contcatination of $x_1 - x_i$ for all $i$: $[x_1, x_1 - x_2, x_1-x_3,x_1-x_4,x_1-x_5]$
+   - **Description**: Determine the correct placement of a sentence within a given context of five sentences. To form the input when training classifiers encode the five sentences to vector representations $x_i$. As input to the classfier we include $x_1$ and the contcatination of $x_1 - x_i$ for all $i$: \\([x_1, x_1 - x_2, x_1-x_3,x_1-x_4,x_1-x_5]\\)
 
 2. **Binary Sentence Ordering**
    - **Datasets Sources**: Arxiv, Wikipedia, Rocstory