Add documentation for CLI commands and introduce real-time voice command exploration

- Created a new README.md file detailing CLI commands for synchronization and usage.
- Added a section discussing the potential of real-time voice commands in daily life.
- Introduced a new slides.md file for a presentation on "超级桌面生活指令" (Super Desktop Life Commands).
- Included background and theme settings for the presentation slides.

components/MyFooter.vue

@@ -0,0 +1,19 @@
+<!-- Foo.vue -->
+
+<template>
+  <div class="fixed bottom-3 right-2 text-gray-300 font-light text-sm">
+   <a :href="link + basename">{{ link + basename }}</a>
+  </div>
+</template>
+<script setup lang="ts">
+const props = defineProps({
+  link: {
+    type: String,
+    default: 'https://kevisual.cn',
+  },
+  basename: {
+    type: String,
+    default: '',
+  },
+});
+</script>