Update the CHANGELOG and README prior to pushing out the new bug fixe…

…s in 4.1.1 (#845)

* updated CHANGELOG for 4.1.1

* update README

* moved from 4.1.1 to 4.1.0 RC2 since we never released 4.1.0

---------

Co-authored-by: Zakir Durumeric <zakird@gmail.com>

CHANGELOG.md

@@ -182,11 +182,15 @@ ZMap 4.0.0 introduces the notion of multi-port scanning, which has been a long r
 ZMap 4.1.0 contains a number of bug fixes and performance enhancements, especially around the sending of probe packets. Additionally, the `IP_ID` is now randomized to prevent the fingerprinting of ZMap scan traffic. Below are some of the most important changes:
 
 ## BUGFIX
+
 * Fixes a bug where an assertion error would always occur when the `-I` flag was used
 * Fixes `--probe-args` parsing with the DNS module
 * Prevents crash when `--batch` size overflowed the uint8 holding the batch_size
 * Fixes size calculation with `--iplayer` option that caused an overflow in `fake_eth_hdr`
 * Fixes shard initialization with multi-port that could cause the scan to scan port 0 
+* Fixes inaccurate estimated time remaining and percentage complete calculations during a multi-port scan
+* Fixes building from source on MidnightBSD
+* Fixes hit-rate calculation with multiple `--probes` packets per target
 
 
 ## FEATURE

README.md

@@ -27,7 +27,7 @@ Installation
 ------------
 
 The latest stable release of ZMap is version [3.0.0](https://github.com/zmap/zmap/releases/tag/v3.0.0) and supports Linux, macOS, and
-BSD. ZMap [4.0.0-RC1](https://github.com/zmap/zmap/releases/tag/v4.0.0-RC1) adds support for scanning multiple ports.
+BSD. ZMap [4.1.0-RC2](https://github.com/zmap/zmap/releases/tag/v4.1.0-RC2) adds support for scanning multiple ports.
 
 **Instructions on building ZMap from source** can be found in [INSTALL](INSTALL.md).