diff --git a/README.md b/README.md
index 4dbfe200a..476f862a9 100644
--- a/README.md
+++ b/README.md
@@ -57,7 +57,7 @@
 * [Random integer in range](#random-integer-in-range)
 * [Random number in range](#random-number-in-range)
 * [Randomize order of array](#randomize-order-of-array)
-* [Redirect to URL](#redirect-to-url)
+* [Redirect to url](#redirect-to-url)
 * [Reverse a string](#reverse-a-string)
 * [RGB to hexadecimal](#rgb-to-hexadecimal)
 * [Run promises in series](#run-promises-in-series)
@@ -91,7 +91,7 @@ const anagrams = str => {
 // anagrams('abc') -> ['abc','acb','bac','bca','cab','cba']
 ```
 
-### Array difference (complement)
+### Array difference
 
 Create a `Set` from `b`, then use `Array.filter()` on `a` to only keep values not contained in `b`.
 
@@ -100,7 +100,7 @@ const difference = (a, b) => { const s = new Set(b); return a.filter(x => !s.has
 // difference([1,2,3], [1,2]) -> [3]
 ```
 
-### Array intersection (Common values between two arrays)
+### Array intersection
 
 Create a `Set` from `b`, then use `Array.filter()` on `a` to only keep values contained in `b`.
 
diff --git a/snippets/array-difference.md b/snippets/array-difference.md
index 74e518f5c..46469b1d6 100644
--- a/snippets/array-difference.md
+++ b/snippets/array-difference.md
@@ -1,4 +1,4 @@
-### Array difference (complement)
+### Array difference
 
 Create a `Set` from `b`, then use `Array.filter()` on `a` to only keep values not contained in `b`.
 
diff --git a/snippets/array-intersection.md b/snippets/array-intersection.md
index 909c4312d..87c42378b 100644
--- a/snippets/array-intersection.md
+++ b/snippets/array-intersection.md
@@ -1,4 +1,4 @@
-### Array intersection (Common values between two arrays)
+### Array intersection
 
 Create a `Set` from `b`, then use `Array.filter()` on `a` to only keep values contained in `b`.