* Add MesloLGS font config steps for Alacritty
* Adding Alacritty font config changes
Shortened steps and included official doc.
* Simplified and updated Alacritty font config steps
Required YAML included in full. Quotes added to font family due to space in family name. Unnecessary detail has been removed.
* Reduced the required Alacritty font config YAML
Removed additional styles from the "MesloLGS NF" family, they are implied and not necessary to include.
