added comments

Author: ganesh-bruno

src/pages/get-started/bruno-basics/download.mdx

@@ -53,11 +53,22 @@ Bruno can be installed via direct download or through package managers on suppor
 
     **APT (Debian/Ubuntu)**
     ```bash
+    # Create keyrings directory
     sudo mkdir -p /etc/apt/keyrings
+    
+    # Update and install GPG and curl
     sudo apt update && sudo apt install gpg curl
+    
+    # List existing keys (optional)
     sudo gpg --list-keys
+    
+    # Add the Bruno repository key
     curl -fsSL "https://keyserver.ubuntu.com/pks/lookup?op=get&search=0x9FA6017ECABE0266" | gpg --dearmor | sudo tee /etc/apt/keyrings/bruno.gpg > /dev/null
+    
+    # Add the Bruno repository
     echo "deb [arch=amd64 signed-by=/etc/apt/keyrings/bruno.gpg] http://debian.usebruno.com/ bruno stable" | sudo tee /etc/apt/sources.list.d/bruno.list
+    
+    # Update and install Bruno
     sudo apt update && sudo apt install bruno
     ```
     **Flatpak**