Incorrect references to fuzzingbook

[dfpetrin]

Describe the bug There are some places on the "Using Debuggingbook Code in your own Programs" which say "fuzzingbook" where they should say "debugging book".

To Reproduce Steps to reproduce the behavior:

1. Go to https://www.debuggingbook.org/html/Importing.html
2. Look at items 1 and 2 in the list under the first heading
3. Observe:

Choose "Resources->Edit as Notebook" in any of the fuzzingbook.org pages

Using pip install fuzzingbook

Expected behavior

Choose "Resources->Edit as Notebook" in any of the debuggingbook.org pages

Using pip install debuggingbook