Rename scripts

Signed-off-by: Severin Kaderli <severin.kaderli@gmail.com>

system/.local/bin/twitch

@@ -0,0 +1,26 @@
+#!/usr/bin/env bash
+# 
+# SCRIPT NAME:
+# twitch
+#
+# AUTHOR:
+# Severin Kaderli <severin.kaderli@gmail.com>
+#
+# DESCRIPTION:
+# This script loads a Twitch livestream in a local video player
+# using streamlink.
+#
+# USAGE:
+# ./twitch USERNAME [RESOLUTION]
+if [[ -z $1 ]]; then
+  echo "Please enter a username!"
+  exit 1
+fi
+
+if [[ -z $2 ]]; then
+  resolution="best"
+else
+  resolution="${2}"
+fi
+
+streamlink "https://twitch.tv/${1}"  "${resolution}"