feat: added isalivescript with variables.

DOCKERFILE

@@ -0,0 +1,18 @@
+FROM debian
+
+ENV WEBSITES=("google.com" "yahoo.com")
+
+ENV WEBHOOK_URL=""
+
+ENV DISCORD_ID=""
+
+RUN apt update && apt install -y \
+    bash \
+    curl \
+    cron \
+
+COPY ./start.sh /start.sh
+
+CMD ["/start.sh"]
+
+