update README

README.md

@@ -15,8 +15,8 @@ pinned: false
 ## Metric Description
 
 Specificity is the fraction of the negatives examples that were correctly labeled by the model as negatives. It can be computed with the equation:
-$$\text{Specificity} = \frac{TN}{TN + FP}$$
-Where $TN$ is the true negatives and $FP$ is the false positives.
+\\[\text{Specificity} = \frac{TN}{TN + FP}\\]
+Where \\(TN\\) is the true negatives and \\(FP\\) is the false positives.
 
 ## How to Use