Update README.md

README.md

@@ -38,7 +38,7 @@ and otherwise \\(c_{\alpha,\beta}^{\gamma} = 0\\).
 Each instance in this dataset is a triple of permutations \\((\alpha,\beta,\gamma)\\), 
 labeled by its coefficient \\(c^{\gamma}_{\alpha \beta}\\) in the expansion of the product 
 \\(\mathfrak{S}_{\alpha} \mathfrak{S}_{\beta}\\). We call permutations \\(\alpha\\) and \\(\beta\\)
-*lower index permutations 1* and *2* respectively. We call \\(\gamma\)) the *upper index 
+*lower index permutations 1* and *2* respectively. We call \\(\gamma\\) the *upper index 
 permutation*. The datasets are organized so that 
 \\(\alpha\\) and \\(\beta\\) are always drawn from the symmetric group on \\(n\\) elements 
 (we provide datasets for \\(n = 3\\), \\(4\\), and \\(5\\)), but \\(\gamma\\) may belong to a