Update cheatsheets

tldr/proxify

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+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# proxify
+
+> A versatile and portable proxy for capturing, manipulating, and replaying HTTP/HTTPS traffic on the go.
+> See also: `mitmproxy`.
+> More information: <https://github.com/projectdiscovery/proxify>.
+
+- Start a HTTP proxy (on the loopback network interface `127.0.0.1` port `8888`):
+
+`proxify`
+
+- Start a HTTP proxy on a custom network interface and port (may require `sudo` for a port number lower than `1024`):
+
+`proxify -http-addr "{{network_interface}}:{{port_number}}"`
+
+- Specify output format and output file:
+
+`proxify -output-format {{jsonl|yaml}} -output {{path/to/file}}`
+
+- Display help:
+
+`proxify -h`