docs(readme): add README.md for meta/ folder

meta/README.md

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+# dotfiles/meta/
+
+Where all dotbot configs will be placed.
+
+## How does it work?
+
+This folder is used by [dotbot](https://github.com/anishathalye/dotbot), a dotfiles bootstrapping tool used for setting up configs.
+
+This folder is setup using [ecarlson94/dotbot-template](https://github.com/ecarlson94/dotbot-template) file/folder structure.
+
+Read: [anishathalye/dotbot using different groups of task](https://github.com/anishathalye/dotbot/wiki/Tips-and-Tricks#how-can-i-have-different-groups-of-tasks-for-different-hosts-with-different-configurations)
+
+`dotfiles/install-standalone` script is used for running dotbot config located in `dotfiles/meta/configs/` folder.
+
+`dotfiles/install-profile` script is used for running a collection of dotbot configs defined in `dotfiles/meta/profiles/` folder.
+
+---
+
+## File/Folder structure
+
+<pre>
+<a href="../../../">dotfiles/</a>meta/
+├── <a href="./README.md">README.md</a>
+├── <a href="./base.yaml">base.yaml</a>
+├── <a href="./configs/">configs/</a>
+├── <a href="https://github.com/anishathalye/dotbot">dotbot/</a>
+├── <a href="./install-list/">install-list/</a>
+├── <a href="./install-script/">install-script/</a>
+└── <a href="./profiles/">profiles/</a>
+</pre>
+
+### base.yaml
+
+default dotbot config to run when running a config from `dotfiles/config/`
+
+**DO NOT** remove.
+
+Obtained from: [ecarlson94/dotbot-template : base.yaml](https://github.com/ecarlson94/dotbot-template/blob/main/meta/base.yaml)
+
+### configs/
+
+contains all dotbot configs/
+
+Check [configs/](./configs)
+
+### dotbot/
+
+[Dotbot repo](https://github.com/anishathalye/dotbot) used as submodule. The software used for bootstrapping and running dotbot configs
+
+### install-list/
+
+Files that contains plugin, extensions, etc to be installed using configs from `dotfiles/meta/configs/`
+
+Check [install-list/](./install-list)
+
+### install-script/
+
+Scripts that are run from a config file in `dotfiles/meta/configs/` folder.
+
+Check [install-script/](./install-script)
+
+### profiles/
+
+contains all dotbot profile script
+
+Check [profiles/](./profiles)
+
+---