Docs: fix grammar and update LVGL library name (#342)

Co-authored-by: al-munazzim <al-munazzim@users.noreply.github.com>

Author: al-munazzim

README.md

@@ -19,7 +19,7 @@ For secret storage we support agnostic mode (wallet forgets all secrets when tur
 
 Our main focus is multisignature setup with other hardware wallets, but wallet can also work as a single signer. We try to make it compatible with Bitcoin Core where we can - PSBT for unsigned transactions, wallet descriptors for importing/exporting multisig wallets. To communicate with Bitcoin Core easier we are also working on [Specter Desktop app](https://github.com/cryptoadvance/specter-desktop) - a small python flask server talking to your Bitcoin Core node.
 
-Most of the firmware is written in MicroPython which makes the code easy to audit and change. We use [secp256k1](https://github.com/bitcoin-core/secp256k1) library from Bitcoin Core for elliptic curve calculations and [LittlevGL](https://lvgl.io/) library for GUI.
+Most of the firmware is written in MicroPython which makes the code easy to audit and change. We use [secp256k1](https://github.com/bitcoin-core/secp256k1) library from Bitcoin Core for elliptic curve calculations and [LVGL](https://lvgl.io/) library for GUI.
 
 ## DISCLAIMER
 

docs/development.md

@@ -32,7 +32,7 @@ All `print()` statements will appear in the terminal output. You can keep both t
 
 ## Writing a simple app
 
-Specter can be extended with custom apps. Most of the functionality is already splitted into apps, like `WalletManager` to manage your wallets, `MessageApp` to sign bitcoin messages, `XpubApp` to show master public keys etc.
+Specter can be extended with custom apps. Most of the functionality is already split into apps, like `WalletManager` to manage your wallets, `MessageApp` to sign bitcoin messages, `XpubApp` to show master public keys etc.
 
 Check out the [apps](../src/apps) folder to understand how they work.