change formatting

input examples are now given as

```bash
input $ARG1
```

While outputs use md's '> ' sign as a quote.

distros/arch/gpu.md

@@ -13,13 +13,17 @@ Include = /etc/pacman.d/mirrorlist
 
 And update:
 
-> sudo pacman -Syu
+```bash
+sudo pacman -Syu
+```
 
 # Step 2: Check Card Manufacturer
 
 Check your graphics card type:
 
-> lspci  | grep VGA
+```bash
+lspci  | grep VGA
+```
 
 # Step 3: Install Drivers
 
@@ -27,23 +31,33 @@ Check your graphics card type:
 
 If you see `Nvidia`, then install the intel drivers:
 
-> sudo pacman -S --needed lib32-mesa vulkan-intel lib32-vulkan-intel vulkan-icd-loader lib32-vulkan-icd-loader
+```bash
+sudo pacman -S --needed lib32-mesa vulkan-intel lib32-vulkan-intel vulkan-icd-loader lib32-vulkan-icd-loader
+```
 
 ## Step 3B
 
 If you see `Intel`, then install the intel drivers:
 
-> sudo pacman -S --needed lib32-mesa vulkan-intel lib32-vulkan-intel vulkan-icd-loader lib32-vulkan-icd-loader xf86-video-intel
+```bash
+sudo pacman -S --needed lib32-mesa vulkan-intel lib32-vulkan-intel vulkan-icd-loader lib32-vulkan-icd-loader xf86-video-intel
+```
 
 ## Step 3C
 
 If you see `AMD`, then check your card support `vulkan`:
 
-> yay -S gpu-viewer
+```bash
+yay -S gpu-viewer
+```
 
-> vulkaninfo | grep 'VkPhysicalDeviceVulkanMemoryModelFeatures' -A 3
+```bash
+vulkaninfo | grep 'VkPhysicalDeviceVulkanMemoryModelFeatures' -A 3
+```
 
 You should see 'true' here.
 
-> sudo pacman -S --needed lib32-mesa vulkan-radeon lib32-vulkan-radeon vulkan-icd-loader lib32-vulkan-icd-loader xf86-video-amdgpu
+```bash
+sudo pacman -S --needed lib32-mesa vulkan-radeon lib32-vulkan-radeon vulkan-icd-loader lib32-vulkan-icd-loader xf86-video-amdgpu
+```