Add Docker cleanup script and README

docker-cleanup/README.md

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+## Why?
+
+This is a handy script to clean up a docker instance.
+
+## How to use?
+
+```bash
+bash -c "$(wget -qLO - https://raw.githubusercontent.com/bigbeartechworld/big-bear-scripts/master/docker-cleanup/run.sh)"
+```

docker-cleanup/run.sh

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+#!/bin/bash
+
+echo "---------------------"
+echo "Big Bear Docker Cleanup Script"
+echo "---------------------"
+echo "Made by BigBearTechWorld"
+echo "---------------------"
+echo "Like the script? Consider supporting my work at: https://ko-fi.com/bigbeartechworld"
+echo "---------------------"
+
+# Function to delete Docker containers
+cleanup_containers() {
+    echo "Current Docker Containers:"
+    docker ps -a
+    read -p "Do you want to remove all stopped containers? (y/n): " answer
+    if [[ "$answer" == "y" ]]; then
+        docker container prune -f
+        echo "Stopped containers removed."
+    fi
+}
+
+# Function to delete Docker images
+cleanup_images() {
+    echo "Current Docker Images:"
+    docker images
+    read -p "Do you want to remove unused Docker images? (y/n): " answer
+    if [[ "$answer" == "y" ]]; then
+        docker image prune -a -f
+        echo "Unused images removed."
+    fi
+}
+
+# Function to delete Docker volumes
+cleanup_volumes() {
+    echo "Current Docker Volumes:"
+    docker volume ls
+    read -p "Do you want to remove unused Docker volumes? (y/n): " answer
+    if [[ "$answer" == "y" ]]; then
+        docker volume prune -f
+        echo "Unused volumes removed."
+    fi
+}
+
+# Function to delete Docker networks
+cleanup_networks() {
+    echo "Current Docker Networks:"
+    docker network ls
+    read -p "Do you want to remove unused Docker networks? (y/n): " answer
+    if [[ "$answer" == "y" ]]; then
+        docker network prune -f
+        echo "Unused networks removed."
+    fi
+}
+
+# Execute cleanup functions
+cleanup_containers
+cleanup_images
+cleanup_volumes
+cleanup_networks
+
+echo "Docker cleanup completed."