docs: move folder

web/content/docs/meta.json

@@ -1,19 +1,15 @@
 {
   "pages": [
     "index",
+    "server-intro",
     "self-host",
     "self-build",
     "sdk",
-    "fqa",
     "changelog",
     "---Java 内存马---",
     "what-is-memshell",
     "memshell",
-    "---Java 回显马---",
-    "what-is-probeshell",
-    "probeshell",
-    "---打包方式---",
-    "packer",
+    "custom-memshell",
     "---其他---",
     "recommend-tools"
   ]