Update multisig-apps.md (#5562)

add mimir multisig wallet description

docs/general/multisig-apps.md

@@ -63,3 +63,12 @@ Besides being user-friendly, Multix provides several benefits:
 
 The pure proxy setup used by [MultiX](https://github.com/ChainSafe/Multix) can be seen on the
 [pure proxy page](../learn/learn-proxies-pure.md#scenario-three-multisig-controlling-a-pure-proxy).
+
+## Mimir
+
+Quick Link: [Demo](https://www.youtube.com/watch?v=amm_Vk0vzP4&t=43s) | [Website](https://app.mimir.global/) | [Twitter](https://twitter.com/Mimir_global) | [Telegram](https://t.me/+t7vZ1kXV5h1kNGQ9) | [Github](https://github.com/mimir-labs)
+
+- **Support for Various Account Types**: Mimir supports a range of account types including Flexible Multisig, Static Multisig, Nested Multisig, and Extension Wallets.
+- **Transaction Tracking**: Offers real-time synchronization of transactions across different account levels.
+- **Third-Party Application Integration**: Users can access third-party applications with their multisig identities. Mimir currently supports integration with applications like Polkadot.js and is planning to expand to others.
+- **User-Friendly Interface**: Designed for ease of use, making complex multisig operations more accessible.