Add a simple readme to the main repository

README.md

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-# example-apps
+# Example Apps
+
+Welcome to the [Tatum Example Apps](https://tatum.io/dapp-templates) repository, containing a collection of simple example applications that demonstrate the usage of the [Tatum SDK](https://github.com/tatumio/tatum-js) for various blockchain and cryptocurrency operations!
+
+## Examples
+
+Here's a list of example applications available in this repository:
+
+- [**Metamask Transfer**](Metamask/transfer): Connect your wallet and perform a quick transfer of funds
+
+- [**Metamask Portfolio**](Metamask/portfolio): Connect your wallet and get all balances
+
+- [**Metamask Notifications**](Metamask/notifications): Connect your wallet and keep track of your transactions
+
+- _[**BTC RPC**](YT%20Apps/BTC%20RPC): Possibly outdated, but can still be used as a reference for the simplest way to use the SDK_
+
+## Getting Started
+
+To get started with a specific example, navigate to the respective subdirectory and follow the instructions provided in the README of that example. Each example should contain a step-by-step guidance on setting up the environment, installing dependencies, and running the application.
+
+For more information about Tatum features, SDK and API, please visit the [Tatum Documentation](https://docs.tatum.com/).
+
+Happy coding!