docs: 📝 add "back to top" links in README

README.md

@@ -49,6 +49,9 @@
 <br />
 
 <!-- Table of Contents -->
+## :notebook_with_decorative_cover: Table of Contents
+
+- [:notebook\_with\_decorative\_cover: Table of Contents](#notebook_with_decorative_cover-table-of-contents)
 - [:star2: About the Project](#star2-about-the-project)
   - [:dart: Features](#dart-features)
     - [📈 Sensors (by Operating System)](#-sensors-by-operating-system)
@@ -196,6 +199,8 @@ number `MAJOR`.`MINOR`.`PATCH`, the gist of it is:
   added, but not breaking changes.
 - A `PATCH` number change indicate minor changes and bug fixes.
 
+[:arrow_up: Back to Top](#-table-of-contents)
+
 <!-- Getting Started -->
 ## :toolbox: Getting Started
 
@@ -246,6 +251,8 @@ Container images are available on
 Note that it is recommended to use an image tagged with the latest release
 version over the latest container image, which might be unstable.
 
+[:arrow_up: Back to Top](#-table-of-contents)
+
 <!-- Usage -->
 ## :eyes: Usage
 
@@ -626,13 +633,17 @@ of the controls. This means that a Home Assistant user not associated with the
 device user running the agent can use the exposed controls to issue potentially
 disruptive actions on a device that another user is accessing.
 
+[:arrow_up: Back to Top](#-table-of-contents)
+
 <!-- Roadmap -->
 ## :compass: Roadmap
 
 Check out [what I'm working
 on](https://github.com/joshuar/go-hass-agent/discussions/150) for future
 releases.
 
+[:arrow_up: Back to Top](#-table-of-contents)
+
 <!-- Contributing -->
 ## :wave: Contributing
 
@@ -649,6 +660,8 @@ releases.
 
 Please read the [Code of Conduct](https://github.com/joshuar/go-hass-agent/blob/master/CODE_OF_CONDUCT.md)
 
+[:arrow_up: Back to Top](#-table-of-contents)
+
 <!-- FAQ -->
 ## :grey_question: FAQ
 
@@ -729,13 +742,19 @@ should start with every boot.
   - For other init systems, consult their documentation on how to enable and run
 user services.
 
+[:arrow_up: Back to Top](#-table-of-contents)
+
 <!-- Acknowledgments -->
 ## :gem: Acknowledgements
 
 - [Home Assistant](https://home-assistant.io).
 - This [Awesome README Template](https://github.com/Louis3797/awesome-readme-template).
 
+[:arrow_up: Back to Top](#-table-of-contents)
+
 <!-- License -->
 ## :warning: License
 
 [MIT](LICENSE)
+
+[:arrow_up: Back to Top](#-table-of-contents)