Stale image URL in section 5 raster data

[justb4]

Was going through the Notebooks, in Section 5 raster data top the 4th image is not rendered, the name is "A matrix of values composing a raster". The URL points to:

https://camo.githubusercontent.com/bf207b7f1a4bc70ae8cf652921320c6ff3a0e280/687474703a2f2f6c65732d656a6b2e637a2f736b6f6c656e692f67726173732f75766f642f5f696d616765732f7261737465722d64657461696c2d64657461696c2e706e67

This is at line 31