README.md: Update

Author: corona10

README.md

@@ -15,3 +15,6 @@ This is a port of [Web Browser Engineering](https://browser.engineering/) series
 |---------|-------------------------------------------------------------|-------------------------------------------------|
 | TLS     |  [ssl](https://docs.python.org/3/library/ssl.html)          | [rustls](https://github.com/ctz/rustls)         |
 | GUI     |  [tkinter](https://docs.python.org/3/library/tkinter.html)  | [druid](https://github.com/linebender/druid)    |
+| gzip    |  [gzip](https://docs.python.org/3/library/gzip.html)        | [flate2](https://github.com/rust-lang/flate2-rs)|
+| deflate |  [zlib](https://docs.python.org/3/library/zlib.html)        | [flate2](https://github.com/rust-lang/flate2-rs)|
+| brotli  |  [brotli](https://github.com/google/brotli)                 | TBD                                             |