Add the monitoring best practice

[gitbuda]

Summary

Please explain what you're showcasing at a best practice.

General checklist

• Best practice is categorized inside one of the directories of this repo
• Provided code of the best practice
• Documented the code of the best practice thoroughly
• Added requirements.txt file for installing dependencies
• Added example to main README.md best practices list

README.md checklist

• Provided steps on how to run Memgraph
• Added version on which you have tested this example
• Added whether this is an Enterprise or Community best practice capability

[gitbuda]

Claude generated, probably not optimal, because the monitoring feature should be used instead -> refactor to use the monitoring endpoint