Adding javadoc for randomGaussian.

References processing/processing-web#42

core/src/processing/core/PApplet.java

@@ -5185,7 +5185,23 @@ public class PApplet extends Applet
     return value;
   }
 
-
+  /**
+   * ( begin auto-generated from randomGaussian.xml )
+   *
+   * Returns a float from a random series of numbers having a mean of 0
+   * and standard deviation of 1. Each time the <b>randomGaussian()</b>
+   * function is called, it returns a number fitting a Gaussian, or
+   * normal, distribution. There is theoretically no minimum or maximum
+   * value that <b>randomGaussian()</b> might return. Rather, there is
+   * just a very low probability that values far from the mean will be
+   * returned; and a higher probability that numbers near the mean will
+   * be returned.
+   *
+   * ( end auto-generated )
+   * @webref math:random
+   * @see PApplet#random(float,float)
+   * @see PApplet#noise(float, float, float)
+   */
   public final float randomGaussian() {
     if (internalRandom == null) {
       internalRandom = new Random();