Merge pull request #5500 from Zearin/docs-its

docs: Fix typos (its/it’s)

Author: limzykenneth

src/color/creating_reading.js

@@ -105,8 +105,8 @@ p5.prototype.blue = function(c) {
  * </div>
  *
  * @alt
- * Left half of canvas salmon pink and the right half with it's brightness colored white.
- * Left half of canvas olive colored and the right half with it's brightness color gray.
+ * Left half of canvas salmon pink and the right half with its brightness colored white.
+ * Left half of canvas olive colored and the right half with its brightness color gray.
  */
 p5.prototype.brightness = function(c) {
   p5._validateParameters('brightness', arguments);

src/dom/dom.js

@@ -261,7 +261,7 @@ p5.prototype.removeElements = function(e) {
  * </code></div>
  *
  * @alt
- * dropdown: pear, kiwi, grape. When selected text "its a" + selection shown.
+ * dropdown: pear, kiwi, grape. When selected text "it's a" + selection shown.
  */
 p5.Element.prototype.changed = function(fxn) {
   p5.Element._adjustListener('change', fxn, this);

src/webgl/p5.Camera.js

@@ -103,7 +103,7 @@ import p5 from '../core/main';
  * @alt
  * White square repeatedly grows to fill canvas and then shrinks.
  * An interactive example of a red cube with 3 sliders for moving it across x, y,
- * z axis and 3 sliders for shifting it's center.
+ * z axis and 3 sliders for shifting its center.
  */
 p5.prototype.camera = function(...args) {
   this._assert3d('camera');
@@ -1302,7 +1302,7 @@ p5.Camera.prototype.lookAt = function(x, y, z) {
  * </div>
  * @alt
  * An interactive example of a red cube with 3 sliders for moving it across x, y,
- * z axis and 3 sliders for shifting it's center.
+ * z axis and 3 sliders for shifting its center.
  */
 p5.Camera.prototype.camera = function(
   eyeX,