Update snippet descriptions

snippets/vectorAngle.md

@@ -3,12 +3,11 @@ title: vectorAngle
 tags: math,beginner
 ---
 
-Returns the angle (theta) between two vectors.
+Calculates the angle (theta) between two vectors.
 
 - Use `Array.prototype.reduce()`, `Math.pow()` and `Math.sqrt()` to calculate the magnitude of each vector and the scalar product of the two vectors.
 - Use `Math.acos()` to calculate the arccos and get the theta value.
 
-
 ```js
 const vectorAngle = (x, y) => {
   let mX = Math.sqrt(x.reduce((acc, n) => acc + Math.pow(n, 2), 0));