Update readme

Author: ohadravid

README.md

@@ -1,8 +1,5 @@
 netstat2
 =======
-
-This is a fork based on the [netstat](https://crates.io/crates/netstat) crate by [ivxvm](https://github.com/ivxvm).
-
 [![Latest version](https://img.shields.io/crates/v/netstat2.svg)](https://crates.io/crates/netstat2)
 [![Documentation](https://docs.rs/netstat2/badge.svg)](https://docs.rs/netstat2)
 ![License](https://img.shields.io/crates/l/netstat2.svg)
@@ -11,6 +8,8 @@ Cross-platform library to retrieve network sockets information.
 Aims to be optimal by using low-level OS APIs instead of command line utilities.
 Provides unified interface and returns data structures which may have additional fields depending on platform.
 
+This is a fork based on the [netstat](https://crates.io/crates/netstat) crate by [ivxvm](https://github.com/ivxvm).
+
 ## Example
 
 ```rust
@@ -42,9 +41,10 @@ fn main() {
 
 ## Details
 
-- On Windows, library uses [GetExtendedTcpTable](https://docs.microsoft.com/en-us/windows/desktop/api/iphlpapi/nf-iphlpapi-getextendedtcptable) & [GetExtendedUdpTable](https://docs.microsoft.com/en-us/windows/desktop/api/iphlpapi/nf-iphlpapi-getextendedudptable) (iphlpapi)
-- On Linux, it uses [NETLINK_INET_DIAG](http://manpages.ubuntu.com/manpages/bionic/en/man7/sock_diag.7.html) protocol and performs pid lookup by traversing `procfs`
-- On OS X, it should ideally use `sysctls`, but currently just parses netstat output (proper impletemention is mostly done in unused modules under `src/integrations/osx` folder, it waits for contributors with mac to finish it)
+- On Windows, this library library uses [GetExtendedTcpTable](https://docs.microsoft.com/en-us/windows/desktop/api/iphlpapi/nf-iphlpapi-getextendedtcptable) & [GetExtendedUdpTable](https://docs.microsoft.com/en-us/windows/desktop/api/iphlpapi/nf-iphlpapi-getextendedudptable) (iphlpapi), 
+with an option to use the older [GetTcpTable](https://docs.microsoft.com/en-us/windows/desktop/api/iphlpapi/nf-iphlpapi-gettcptable) & [GeUdpTable](https://docs.microsoft.com/en-us/windows/desktop/api/iphlpapi/nf-iphlpapi-getudptable).
+- On Linux, it uses [NETLINK_INET_DIAG](http://manpages.ubuntu.com/manpages/bionic/en/man7/sock_diag.7.html) protocol and performs pid lookup by traversing `procfs`.
+- On OS X, it uses [proc_pidfdinfo](https://opensource.apple.com/source/xnu/xnu-1504.7.4/bsd/kern/proc_info.c.auto.html).
 
 ## License