Update Readme (#50)

Got rid of outdated information, the tool is more than sufficient to explain it visually, added intensity on/off description, updated spec of max w/h

README.md

@@ -4,53 +4,74 @@ This repository contains the Shadow Mask files for the MiSTer FPGA.
 
 ## Instructions
 
-Create a folder named `Shadow_Masks` in the root of your MicroSD Card along with the other folders like "filters", "games", etc... Place the .txt Shadow Mask files into that folder.
+Automated Method: Run the [Downloader.sh](https://github.com/MiSTer-devel/Downloader_MiSTer/raw/main/downloader.sh) script to receive the most up to date ShadowMasks placed in the proper folder.
 
-## Color Palette
+Manual Method: Create a folder named `Shadow_Masks` in the root of your MicroSD Card along with the other folders like "filters", "games", etc... Place the .txt Shadow Mask files into that folder.
 
-| Color | Value | Bits |
-| --- | --- | --- |
-| Gray | 0 | 000 |
-| Blue | 1 | 001 |
-| Green | 2 | 010 |
-| Cyan | 3 | 011 |
-| Red | 4 | 100 |
-| Magenta | 5 | 101 |
-| Yellow | 6 | 110 |
-| White | 7 | 111 |
-
-Max width = 8  
-Max Height = 8
-
-## How It Works
-
-Here's an example. If you wanted to make RGB dots that use this pattern:
-
-![](example.png)
-
-Then you would make a file like this:
-
-```
-# w,h
-6,4
-
-# lut
-4,4,2,2,1,1
-4,4,2,2,1,1
-2,1,1,4,4,2
-2,1,1,4,4,2
-```
-
-These numbers correspond to the following r, g, b values like this:
-
-```
-r,r,g,g,b,b
-r,r,g,g,b,b
-g,b,b,r,r,g
-g,b,b,r,r,g
-```
 ## Create Your Own
 
 With the tool found here: [MiSTer - Shadow Mask Editor](https://bool.space/mister/ShadowMaskEditor.htm)
 
 Tool provided by [Tonurics](https://github.com/tonurics)
+
+## Specifications
+
+### Dimensions
+
+Max width = 16  
+Max Height = 16
+
+### Color Palette
+
+|  Color  | Value |
+| ------- | ----- |
+|  Gray   |   0   |
+|  Blue   |   1   |
+|  Green  |   2   |
+|  Cyan   |   3   |
+|   Red   |   4   |
+| Magenta |   5   |
+| Yellow  |   6   |
+|  White  |   7   |
+
+### Intensity On
+
+|   %    | Value |
+| ------ | ----- |
+| 100    |   0   |
+| 106.25 |   1   |
+| 112.25 |   2   |
+| 118.75 |   3   |
+| 125    |   4   |
+| 131.25 |   5   |
+| 137.5  |   6   |
+| 143.75 |   7   |
+| 150    |   8   |
+| 156.25 |   9   |
+| 162.5  |   a   |
+| 168.75 |   b   |
+| 175    |   c   |
+| 181.25 |   d   |
+| 187.5  |   e   |
+| 193.75 |   f   |
+
+### Intensity Off
+
+|   %    | Value |
+| ------ | ----- |
+| 0      |   0   |
+| 6.25   |   1   |
+| 12.5   |   2   |
+| 18.75  |   3   |
+| 25     |   4   |
+| 31.25  |   5   |
+| 37.5   |   6   |
+| 43.75  |   7   |
+| 50     |   8   |
+| 56.25  |   9   |
+| 62.5   |   a   |
+| 68.75  |   b   |
+| 75     |   c   |
+| 81.25  |   d   |
+| 87.5   |   e   |
+| 93.75  |   f   |