Updated the broken links under "Implementing a Search Engine" section
Description
Since the original owner no longer seems to maintain the website and the website no longer works, I added Internet Archive links (web.archive.org).
Motivation and Context
Works as a makeshift solution until a better solution is found
Fixes #380
How Has This Been Tested?
All the three links have been changed and are in a working condition.
They correctly navigate a snapshot of the original website taken by the Internet Archive (web.archive.org)
Types of changes
[x] Content Update (change which fixes an issue or updates an already existing submission)
[ ] New Article (change which adds functionality)
[x] Documentation change
Checklist:
[x] My code follows the code style of this project.
[x] I have updated the documentation accordingly.
[x] I have read the CONTRIBUTING document.
[x] I have made checks to ensure URLs and other resources are valid
Updated the broken links under "Implementing a Search Engine" section
Description
Since the original owner no longer seems to maintain the website and the website no longer works, I added Internet Archive links (web.archive.org).
Motivation and Context
Works as a makeshift solution until a better solution is found Fixes #380
How Has This Been Tested?
All the three links have been changed and are in a working condition. They correctly navigate a snapshot of the original website taken by the Internet Archive (web.archive.org)
Types of changes
Checklist: