update doc structure

docs/profile-format/general/_category_.json

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+{
+  "label": "[General]",
+  "position": 3
+}

docs/profile-format/general/always_real_ip.md

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+---
+sidebar_position: 3
+---
+
+# `always-real-ip`
+
+In some scenarios, domain DNS query will response with a fake ip which match `198.18.0.0/16`. Generally it will not cause any issues.
+
+If you encounter some network issue due to this feature, you can specify `always-real-ip` to bypass this hack.
+
+## Sample
+
+```ini
+always-real-ip = *.srv.nintendo.net, *.stun.playstation.net, xbox.*.microsoft.com, *.xboxlive.com
+```
+
+## Format
+
+```ini
+always-real-ip = {domain}, {wildcard domain}, ...
+```
+
+:::tip
+Currently we observe that the Google Voice dialing problem can be resolved by using `always-real-ip`, please try sample below:
+
+```ini
+always-real-ip = stun.l.google.com
+```
+:::

docs/profile-format/general/dns_server.md

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+---
+sidebar_position: 0
+---
+
+# `dns-server`
+
+Specify dns server used by application
+
+## Sample
+
+```ini
+dns-server = system, 8.8.8.8, 8.8.4.4, 9.9.9.9:9953
+```
+
+## Format
+
+```ini
+dns-server = system, {dns server}[:port], ...
+```
+
+- Port definition is optional, by default it is `53`
+- `system` means use system DNS
+
+:::tip
+- If `dns-server` is not assigned, `system` will be used
+- Currently [DoH](https://en.wikipedia.org/wiki/DNS_over_HTTPS) and [DoT](https://en.wikipedia.org/wiki/DNS_over_TLS) is not supported yet
+:::

docs/profile-format/general/http_listen.md

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+---
+sidebar_position: 4
+---
+
+# `http-listen`
+
+Establish a http proxy server on your device and provide proxy service in specified ip
+
+## References
+
+- https://en.wikipedia.org/wiki/HTTP_tunnel
+- https://developer.mozilla.org/en-US/docs/Web/HTTP/Methods/CONNECT
+- https://en.wikipedia.org/wiki/Proxy_server#Web_proxy_servers
+
+## Sample
+
+```ini
+http-listen = 0.0.0.0:1234
+```
+
+## Format
+
+```ini
+http-listen = {ip}:{port}
+```
+
+:::tip
+If you want to provide proxy service in your LAN, you should use `0.0.0.0` as `ip` param, use `127.0.0.1` will provide proxy service on your device only.
+:::

docs/profile-format/general/proxy_test_url.md

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+---
+sidebar_position: 2
+---
+
+# `proxy-test-url`
+
+Test url used by [url-test](/docs/profile-format/proxygroup/auto) and manually node speed test.
+
+An `HTTP HEAD` request will be sent towards this url
+
+An `HTTP/1.1 204 No Content` response is expected.
+
+## Sample
+
+```ini
+proxy-test-url = http://www.gstatic.com/generate_204
+```
+
+## Format
+
+```ini
+proxy-test-url = {http_url}
+```
+
+:::tip
+`url` should start with `http://`, `https://` or other scheme uri is not supported
+:::
+
+:::tip
+You can emulate proxy test by using command below:
+```shell
+curl -I http://www.gstatic.com/generate_204
+```
+:::

docs/profile-format/general/skip_proxy.md

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+---
+sidebar_position: 1
+---
+
+# `skip-proxy`
+
+Specify route rule and domain rule, matching traffic will not be redirected or rejected.
+
+### Sample
+
+```ini
+skip-proxy = 127.0.0.1, 192.168.0.0/16, 10.0.0.0/8, 172.16.0.0/12, 100.64.0.0/10, localhost, *.local, www.baidu.com
+```
+
+### Format
+
+```ini
+skip-proxy = {ip}, {ip/mask}, {domain}, {wildcard domain}, ...
+```
+
+:::note
+Due to system restriction, traffic match `skip-proxy` still be handled by VpnService, but treated like [DIRECT](/docs/profile-format/proxy/built-in-proxy/direct) rule
+:::

docs/profile-format/general/socks5_listen.md

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+---
+sidebar_position: 5
+---
+
+# `socks5-listen`
+
+Establish a socks5 proxy server on your device and provide proxy service in specified ip
+
+### References
+
+- https://datatracker.ietf.org/doc/html/rfc1928
+- https://datatracker.ietf.org/doc/html/rfc1929
+
+### Sample
+
+```ini
+socks5-listen = 127.0.0.1:1235
+```
+
+### Format
+
+```ini
+socks5-listen = {ip}:{port}
+```
+
+:::tip
+If you want to provide proxy service in your LAN, you should use `0.0.0.0` as `ip` param, use `127.0.0.1` will provide proxy service on your device only.
+:::