added completion for notify-send command

clean_files.txt

@@ -76,6 +76,7 @@ completion/available/kontena.completion.bash
 completion/available/kubectl.completion.bash
 completion/available/lerna.completion.bash
 completion/available/minikube.completion.bash
+completion/available/notify-send.completion.bash
 completion/available/npm.completion.bash
 completion/available/packer.completion.bash
 completion/available/pip.completion.bash

completion/available/notify-send.completion.bash

@@ -0,0 +1,19 @@
+# shellcheck shell=bash
+
+function __notify-send_completions() {
+	local curr=$(_get_cword)
+	local prev=$(_get_pword)
+
+	case $prev in
+		-u | --urgency)
+			# shellcheck disable=SC2207
+			COMPREPLY=($(compgen -W "low normal critical" -- "$curr"))
+			;;
+		*)
+			# shellcheck disable=SC2207
+			COMPREPLY=($(compgen -W "-? --help -u --urgency -t --expire-time -a --app-name -i --icon -c --category -h --hint -v --version" -- "$curr"))
+			;;
+	esac
+}
+
+complete -F __notify-send_completions notify-send