Update README.md

Added descriptions for v2.1 and v2.2 features and enhancements.

Author: bradleydworak

README.md

@@ -2,7 +2,7 @@ Harmonize Project *for Philips Hue* [![ForTheBadge built-with-love](http://ForTh
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-Harmonize Project is a low-latency video analysis and pass-through application built with Python which connects to Philips Hue lights and lightstrips based on their location relative to your TV screen; creating an amazing ambient lighting effect! 
+Harmonize Project connects Philips Hue lights and lightstrips to your TV screen content, creating an amazing ambient lighting effect! This application utilizes a low-latency video and color analysis built with Python 3. 
 
 Check out our Reddit thread [here](https://www.reddit.com/r/Hue/comments/i1ngqt/release_harmonize_project_sync_hue_lights_with/) and watch the demo below! Electromaker explains how our application works at a high level in his podcast [here!](https://youtu.be/tYnvYYWedVc?t=1790)
 
@@ -11,6 +11,8 @@ Check out our Reddit thread [here](https://www.reddit.com/r/Hue/comments/i1ngqt/
 Harmonize Project (formerly known as Harmonize Hue) has no affiliation with Signify or Philips Hue. Hue and Philips Hue are trademarks of Signify.
 
 # New Features
+* v2.2: Support for webcam stream input via file/URL
+* v2.1: Support for multiple Hue bridges
 * v2.0: Support for gradient lightstrips is now available!
 * v1.3: Added multicast DNS discovery for detecting bridge
 * v1.2: Latency now optimized for a single light source centered behind display (use the -s argument at the command prompt to enable)
@@ -29,16 +31,16 @@ Harmonize Project (formerly known as Harmonize Hue) has no affiliation with Sign
 **Minimum Hardware:**
 
 * Hue bridge using firmware version 194808600 or greater
-* Raspberry Pi (tested on version 4B) or Linux box running at 1.5GHz+ with at least 4 CPU cores (tested on Ubuntu 22.04 64-bit LTS)
-* Video/Camera input device (tested with an USB 3.0 HDMI capture card)  
+* Raspberry Pi 4B/3B/Zero or Linux box running at 1.5GHz+ with at least 4 CPU cores (tested on Ubuntu 22.04 64-bit LTS). The RPi 4B will exhibit optimal performance at 1080p resolution. Good performance can be achieved on the RPi 3B and Zero with minimal tweaking to lower frame rates (~10 FPS for the Zero) and video resolutions. 
+* HDMI video capture card or Webcam input device (ex. https://github.com/silvanmelchior/RPi_Cam_Web_Interface)
 
-**Example A Hardware configuration (Tested on Raspberry Pi 4B):**
+**Example A Hardware configuration:**
 * RPi RAM: 256MB Free Minimum (512MB recommended)
 * RPi CPU: 1.5GHz+, 4 Cores strongly recommended due to running three simultaneous threads.
 * HDMI Splitter (Must be able to output 4k & 1080/720p simultaneously) [Here is a good one for $25](https://www.amazon.com/gp/product/B07YTWV8PR/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1), though it breaks HDR when downscaling output 2. The goal here is one output of 4K and another output of 1080/720p.
 * USB3.0 HDMI Capture Card (Capable of capturing 720/1080p; delay should be 50ms or under.) [I got this when it was $45.](https://www.amazon.com/gp/product/B07Z7RNDBZ/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1) A similar one should be fine. These are untested: [Panoraxy](https://www.amazon.com/Panoraxy-Capture-1080PFHD-Broadcast-Camcorder/dp/B088PYDJ22/ref=sr_1_21?dchild=1&keywords=hdmi+to+usb+3.0+capture&qid=1596386201&refinements=p_36%3A1253504011%2Cp_85%3A2470955011&rnid=2470954011&rps=1&s=electronics&sr=1-21) | [Aliexpress (This shape/style tends to perform well.)](https://www.aliexpress.com/item/4000834496145.html?spm=a2g0o.productlist.0.0.27a14df5Wc5Qoc&algo_pvid=e745d484-c811-4d2e-aebd-1403e862f148&algo_expid=e745d484-c811-4d2e-aebd-1403e862f148-15&btsid=0ab50f4415963867142714634e7e8e&ws_ab_test=searchweb0_0,searchweb201602_,searchweb201603_)
 
-**Example B Hardware configuration (for A/V receivers with 2 or more HDMI outputs, also tested on Raspberry Pi 4B):**
+**Example B Hardware configuration (for A/V receivers with 2 or more HDMI outputs):**
 * Raspberry Pi 4B kit running with recommended power supply. This hardware option was tested on the 8GB model running Ubuntu 64-bit OS (see software setup option B below).
 * HDMI Splitter (tested on U9 ViewHD Latest 4K 1x2 HDMI Splitter 1 in 2 Out, Model U9-Pluto v1.4)
 * USB3.0 HDMI Capture Card (tested on Elgato Cam Link 4k)