Example of usage Inherent Extrinsics on top of node-template + tutorial on Inherents

[Retamogordo]

Why would it help the Polkadot Dev Community
Inherents are briefly mentioned on docs https://docs.substrate.io/learn/transaction-types/#inherent-transactions.
I needed to use this functionality on a custom node and it required some extra research due to lack of updated guidance on the topic.
The only relevant repo I was able to find dates back 4 years and is written with outdated sources.
I would like to provide a tutorial of extending the node-template with relevant functionality which, along with existing Rust docs, would help developers incorporate the feature into their projects.

Tutorial Outline
Extend the substrate-node-template to obtain a working project and write a step-by-step tutorial of the development process.

Checks
You do not have to check all.

• There is no similar tutorial already around somewhere
• I want to receive funding and have not already received funding for the tutorial
• The tutorial is not published yet
• The tutorial is already published add link

[github-actions]

Cool, thank you for creating your first issue on polkadot.study.

[niklasp]

published: https://polkadot.study/tutorials/substrate-inherents-tutorial/intro
paid: https://etherscan.io/tx/0x164cda64b231c5bd82afc1e40e8c7c5c2bc19edcde274915eb96f9a4291bc774