Replace dead pixel viewer website

The "CameraCapture" and "CameraTestPattern" examples output raw image data for a frame captured from the camera. The
user is instructed to use the output with a website that provides a raw image display tool.

The website previously referenced went dead two years ago and the domain has been taken over by an unrelated entity. The
URL now redirects to a potentially malicious website.

The examples are hereby updated to suggest an alternative site. Although less full feature than the previous site, the
lost functionality was not relevant to our use case. Best of all, the new site is open source!

Author: per1234

examples/CameraCapture/CameraCapture.ino

@@ -2,10 +2,10 @@
   OV767X - Camera Test Pattern
 
   This sketch waits for the letter 'c' on the Serial Monitor,
-  it then reads a frame from the OmniVision OV7670 camera and 
+  it then reads a frame from the OmniVision OV7670 camera and
   prints the data to the Serial Monitor as a hex string.
 
-  The website https://rawpixels.net - can be used the visualize the data:
+  The website https://pixpeep.mort.coffee/ can be used the visualize the data:
     width: 176
     height: 144
     RGB565

examples/CameraTestPattern/CameraTestPattern.ino

@@ -2,10 +2,10 @@
   OV767X - Camera Test Pattern
 
   This sketch enables the test pattern mode, then reads a frame from
-  the OmniVision OV7670 camera and prints the data to the 
+  the OmniVision OV7670 camera and prints the data to the
   Serial Monitor as a hex string.
 
-  The website https://rawpixels.net - can be used the visualize the data:
+  The website https://pixpeep.mort.coffee/ can be used the visualize the data:
     width: 176
     height: 144
     RGB565