update docs

Author: jwu

api.md

@@ -3557,13 +3557,13 @@ This is equivalent to (but much faster than):
     mat4.identity(dest);
     mat4.translate(dest, vec);
     let quatMat = mat4.create();
-    quat4.toMat4(quat, quatMat);
+    quat.toMat4(quat, quatMat);
     mat4.multiply(dest, quatMat);
 
 **Parameters**
 
 -   `out` **[mat4](#mat4)** mat4 receiving operation result
--   `q` **quat4** Rotation quaternion
+-   `q` **[quat](#quat)** Rotation quaternion
 -   `v` **[vec3](#vec3)** Translation vector
 
 Returns **[mat4](#mat4)** out
@@ -3619,14 +3619,14 @@ This is equivalent to (but much faster than):
     mat4.identity(dest);
     mat4.translate(dest, vec);
     let quatMat = mat4.create();
-    quat4.toMat4(quat, quatMat);
+    quat.toMat4(quat, quatMat);
     mat4.multiply(dest, quatMat);
     mat4.scale(dest, scale)
 
 **Parameters**
 
 -   `out` **[mat4](#mat4)** mat4 receiving operation result
--   `q` **quat4** Rotation quaternion
+-   `q` **[quat](#quat)** Rotation quaternion
 -   `v` **[vec3](#vec3)** Translation vector
 -   `s` **[vec3](#vec3)** Scaling vector
 
@@ -3641,15 +3641,15 @@ This is equivalent to (but much faster than):
     mat4.translate(dest, vec);
     mat4.translate(dest, origin);
     let quatMat = mat4.create();
-    quat4.toMat4(quat, quatMat);
+    quat.toMat4(quat, quatMat);
     mat4.multiply(dest, quatMat);
     mat4.scale(dest, scale)
     mat4.translate(dest, negativeOrigin);
 
 **Parameters**
 
 -   `out` **[mat4](#mat4)** mat4 receiving operation result
--   `q` **quat4** Rotation quaternion
+-   `q` **[quat](#quat)** Rotation quaternion
 -   `v` **[vec3](#vec3)** Translation vector
 -   `s` **[vec3](#vec3)** Scaling vector
 -   `o` **[vec3](#vec3)** The origin vector around which to scale and rotate

lib/mat4.js

@@ -912,11 +912,11 @@ mat4.fromZRotation = function (out, rad) {
  *     mat4.identity(dest);
  *     mat4.translate(dest, vec);
  *     let quatMat = mat4.create();
- *     quat4.toMat4(quat, quatMat);
+ *     quat.toMat4(quat, quatMat);
  *     mat4.multiply(dest, quatMat);
  *
  * @param {mat4} out mat4 receiving operation result
- * @param {quat4} q Rotation quaternion
+ * @param {quat} q Rotation quaternion
  * @param {vec3} v Translation vector
  * @returns {mat4} out
  */
@@ -1052,12 +1052,12 @@ mat4.getRotation = function (out, mat) {
  *     mat4.identity(dest);
  *     mat4.translate(dest, vec);
  *     let quatMat = mat4.create();
- *     quat4.toMat4(quat, quatMat);
+ *     quat.toMat4(quat, quatMat);
  *     mat4.multiply(dest, quatMat);
  *     mat4.scale(dest, scale)
  *
  * @param {mat4} out mat4 receiving operation result
- * @param {quat4} q Rotation quaternion
+ * @param {quat} q Rotation quaternion
  * @param {vec3} v Translation vector
  * @param {vec3} s Scaling vector
  * @returns {mat4} out
@@ -1110,13 +1110,13 @@ mat4.fromRTS = function (out, q, v, s) {
  *     mat4.translate(dest, vec);
  *     mat4.translate(dest, origin);
  *     let quatMat = mat4.create();
- *     quat4.toMat4(quat, quatMat);
+ *     quat.toMat4(quat, quatMat);
  *     mat4.multiply(dest, quatMat);
  *     mat4.scale(dest, scale)
  *     mat4.translate(dest, negativeOrigin);
  *
  * @param {mat4} out mat4 receiving operation result
- * @param {quat4} q Rotation quaternion
+ * @param {quat} q Rotation quaternion
  * @param {vec3} v Translation vector
  * @param {vec3} s Scaling vector
  * @param {vec3} o The origin vector around which to scale and rotate