feat: add instructions to install gbc for Termux

README.md

@@ -30,6 +30,16 @@ Follow the next steps to install **gbc**:
    ```
 3. You can check if **gbc** is installed by typing `gbc --version` in your terminal.
 
+### Install gbc for Termux
+Follow the next steps to install **gbc** for [Termux](https://termux.dev/en/):
+
+1. Make sure you already have [curl](https://curl.se/) installed on your machine;
+2. Paste this command in your terminal:
+   ```powershell
+   bash -c "$(curl --fail --show-error --silent --location https://raw.githubusercontent.com/AllanCapistrano/gbc/main/scripts/install-termux.sh)"
+   ```
+3. You can check if **gbc** is installed by typing `gbc --version` in your terminal.
+
 ### Using gbc
 Once you have **gbc** installed, after adding the file(s) to commit, type `gbc` in your terminal, select the **commit type** using the **arrows keys**, and press **enter**. After that, enter the **commit message** you want.