alacritty: add page (#3306)

pages/common/alacritty.md

@@ -0,0 +1,24 @@
+# alacritty
+
+> Cross-platform, GPU-accelerated terminal emulator.
+> More information: <https://github.com/jwilm/alacritty>.
+
+- Open a new alacritty window:
+
+`alacritty`
+
+- Run in a specific directory:
+
+`alacritty --working-directory {{path/to/directory}}`
+
+- Run a command in a new alacritty window:
+
+`alacritty -e {{command}}`
+
+- Specify alternative configuration file (defaults to $XDG_CONFIG_HOME/alacritty/alacritty.yml):
+
+`alacritty --config-file {{path/to/config.yml}}`
+
+- Run with live config reload enabled (can also be enabled by default in alacritty.yml):
+
+`alacritty --live-config-reload --config-file {{path/to/config.yml}}`