Rename snoc and cons to append and prepend for consistency

core/src/main/scala/cats/data/Chain.scala

@@ -72,26 +72,26 @@ sealed abstract class Chain[+A] {
   /**
    * Returns a new Chain consisting of `a` followed by this. O(1) runtime.
    */
-  final def cons[A2 >: A](a: A2): Chain[A2] =
+  final def prepend[A2 >: A](a: A2): Chain[A2] =
     append(one(a), this)
 
   /**
-   * Alias for [[cons]].
+   * Alias for [[prepend]].
    */
   final def +:[A2 >: A](a: A2): Chain[A2] =
-    cons(a)
+    prepend(a)
 
   /**
    * Returns a new Chain consisting of this followed by `a`. O(1) runtime.
    */
-  final def snoc[A2 >: A](a: A2): Chain[A2] =
+  final def append[A2 >: A](a: A2): Chain[A2] =
     append(this, one(a))
 
   /**
-   * Alias for [[snoc]].
+   * Alias for [[append]].
    */
   final def :+[A2 >: A](a: A2): Chain[A2] =
-    snoc(a)
+    append(a)
 
   /**
    * Applies the supplied function to each element and returns a new Chain.