Error in noise() example code in documentation

Issue description

Small error in example code, the example contains two void draw()s, instead of one void start() and one void draw(). Proposed fix is to modify the first void draw() to void setup(). This fix has been tested and the code is working after changing this.

URL(s) of affected page(s)

https://processing.org/reference/noise_.html

Proposed fix

...
void setup() { //this line got changed from void draw()
  background(204);
...
}
float noiseScale = 0.02;

void draw() {
  background(0);
...
}

開啟 https://processing.org/reference/noise_.html 上受影響的 noise() 參考頁面，並檢查其中的範例程式碼。將第一個重複的 void draw() 宣告改為 void setup()，然後確認範例包含一個 setup() 和一個 draw()，並且仍如描述般正常運作。