Implement autogeneration of Documentation/README.md (#1738)

* mkdocs.yml: unify formatting style

* Docs/README.md: add auto-generated README.md file for Documentation/ directory

* Docs/README.md: fix refs

* Docs/README.md: fix locations

* Docs/README.md: trying workaround spaces in filenames for refs

* Documentation/README.md: update generated file trying to fix all formatting issues

* Documentation/README.md: reduce title size

* Documentation/README.md: add link for official online docs

* scripts/deploy.sh: implement docs_readme function

* deploy.sh: add overwrite warning in help output

* deploy.sh: try to fix shellcheck warnings

* deploy.sh:docs_readme() - show note message only if README should be updated

* deploy.sh:docs_readme() - fix shellcheck

* github/push: add Documentation/README.md check

* github/push: force usage of /bin/sh for deploy.sh script

* testing, testing, testing

* deploy.sh:docs_readme() - make error-related message more clear about what to donext

* Revert change used only to test failure on github CI

Documentation/README.md

@@ -0,0 +1,29 @@
+
+<!-- THIS FILE IS AUTOGENERATED by "scripts/deploy.sh docs_readme" based on nav section in scripts/IronOS-mkdocs.yml config -->
+<!-- THIS FILE IS NOT SUPPOSED TO BE EDITED MANUALLY -->
+
+#### This is autogenerated README for brief navigation through github over official documentation for IronOS project
+#### This documentation is also available [here online](https://ralim.github.io/IronOS)
+
+  - [Home](../Documentation/index.md)
+  - [Getting Started](../Documentation/GettingStarted.md)
+  - Flashing the firmware
+      - [MHP30](../Documentation/Flashing/MHP30.md)
+      - [Pinecil V1](../Documentation/Flashing/Pinecil%20V1.md)
+      - [Pinecil V2](../Documentation/Flashing/Pinecil%20V2.md)
+      - [TS80(P)](../Documentation/Flashing/TS80(P).md)
+      - [TS100](../Documentation/Flashing/TS100.md)
+  - Operation
+      - [Main Menu](../Documentation/Menu.md)
+      - [Settings](../Documentation/Settings.md)
+      - [Debug Menu](../Documentation/DebugMenu.md)
+      - [Power](../Documentation/Power.md)
+      - [Temperature](../Documentation/Temperature.md)
+  - [Startup Logo](../Documentation/Logo.md)
+  - Hardware
+      - [Hall Sensor (Pinecil)](../Documentation/HallSensor.md)
+      - [Hardware Notes](../Documentation/Hardware.md)
+      - [Troubleshooting](../Documentation/Troubleshooting.md)
+      - [Known Hardware Issues](../Documentation/HardwareIssues.md)
+  - [Translations](../Documentation/Translation.md)
+  - [Development](../Documentation/Development.md)