change formatting

input examples are now given as

```bash
input $ARG1
```

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

distros/arch/pacman.md

@@ -7,11 +7,15 @@ Packages are kept in /var/cache/pacman/pkg.
 
 Delete unused old packages with:
 
-> sudo pacman -Sc
+```bash
+sudo pacman -Sc
+```
 
 Signatures are handled by the pacman-key, initially set up with:
 
-> sudo pacman-key --populate archlinux
+```bash
+sudo pacman-key --populate archlinux
+```
 
 And refreshed with:
 
@@ -19,23 +23,33 @@ sudo pacman-key --refresh-keys
 
 If you have usigned keys, you can refresh with:
 
-> sudo pacman -Sc
+```bash
+sudo pacman -Sc
+```
 
 or 
 
-> sudo pacman -Scc
+```bash
+sudo pacman -Scc
+```
 
 Reset all keys with:
 
-> sudo rm -r /etc/pacmand.d/gnupg/ && sudo pacman-key --init
+```bash
+sudo rm -r /etc/pacmand.d/gnupg/ && sudo pacman-key --init
+```
 
 If you're constantly getting 'everything corrupted, nothing upgraded', try running:
 
-> sudo pacman -S archlinux-keyring
+```bash
+sudo pacman -S archlinux-keyring
+```
 
 List all orphaned packages:
 
-> sudo pacman -Qtdq
+```bash
+sudo pacman -Qtdq
+```
 
 ## Cleaning Config Files