Auto update markdown TOC

Author: alshedivat

FAQ.md

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 Here are some frequently asked questions. If you have a different question, please check if it was not already answered in the Q&A section of the [GitHub Discussions](https://github.com/alshedivat/al-folio/discussions/categories/q-a). If not, feel free to ask a new question there.
 
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 - [Frequently Asked Questions](#frequently-asked-questions)
   - [After I create a new repository from this template and setup the repo, I get a deployment error. Isn't the website supposed to correctly deploy automatically?](#after-i-create-a-new-repository-from-this-template-and-setup-the-repo-i-get-a-deployment-error-isnt-the-website-supposed-to-correctly-deploy-automatically)
   - [I am using a custom domain (e.g., foo.com). My custom domain becomes blank in the repository settings after each deployment. How do I fix that?](#i-am-using-a-custom-domain-eg-foocom-my-custom-domain-becomes-blank-in-the-repository-settings-after-each-deployment-how-do-i-fix-that)
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   - [How can I update Tabler Icons version on the template](#how-can-i-update-tabler-icons-version-on-the-template)
   - [What do all these GitHub actions/workflows mean?](#what-do-all-these-github-actionsworkflows-mean)
   - [How can I use Google Search Console ID on the template?](#how-can-i-use-google-search-console-id-on-the-template)
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 ## After I create a new repository from this template and setup the repo, I get a deployment error. Isn't the website supposed to correctly deploy automatically?

INSTALL.md

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 # Installing and Deploying
 
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 - [Installing and Deploying](#installing-and-deploying)
   - [Recommended Approach](#recommended-approach)
   - [Local setup on Windows](#local-setup-on-windows)
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     - [Deployment to another hosting server (non GitHub Pages)](#deployment-to-another-hosting-server-non-github-pages)
     - [Deployment to a separate repository (advanced users only)](#deployment-to-a-separate-repository-advanced-users-only)
   - [Upgrading from a previous version](#upgrading-from-a-previous-version)
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 ## Recommended Approach