update docs

Author: saucecontrol

doc/web.md

@@ -154,11 +154,17 @@ The following MagicScaler `ProcessImageSettings` values can be set from the quer
 | Sharpen | sharpen | bool |
 | HybridMode | hybrid | favorquality, favorspeed, turbo, off |
 | SaveFormat | format | jpg, jpeg, png, png8, gif, bmp, tiff |
-| JpegQuality | quality | int |
+| JpegQuality | quality<br />q | int |
 | JpegSubsampleMode | subsample | 420, 422, 444 |
 | MatteColor | bgcolor<br />bg | [CSS3 named color], [rgba hex values] |
 | Interpolation | filter | nearestneighbor, average, linear, quadratic, catrom, cubic, lanczos, spline36 |
 
+Additionally, WebRSize supports a `devicepixelratio` (or `dpr`) query string parameter.  This setting will automatically adjust both the size and quality settings for the target client.  Using `srcset`, you can configure images with the same logical (CSS) size and have WebRSize take care of the rest.  In this example, a retina device will receive a 200px wide image with a lower jpeg quality/subsampling to compensate and keep file sizes reasonable.
+
+```
+<img src="photo.jpg?w=100" srcset="photo.jpg?w=100 1x, photo.jpg?w=100&dpr=2 2x" />
+```
+
 ## Advanced Topics
 
 ### Output Caching

readme.md

@@ -67,13 +67,16 @@ See the [documentation page](doc/web.md) for more details.
 
 Release History
 ---------------
-#### WebRSize 0.3.1.0
-* Require MagicScaler 0.8.3 or later
-* Fix nuget config transform to place `configSections` as the first child of `configuration`
-
-#### MagicScaler 0.8.3.0
-* Fixed image corruption (and possible access violation) when sharpening BGR/BGRA images in sRGB blending mode.
-* Use latest System.Buffers version for .NET Framework installations
+#### MagicScaler 0.8.4.0
+* Fixed an issue that caused sharpening to be a no-op when working with some pixel formats in sRGB blending mode.
+* Improved quality of scaling and sharpening with partially-transparent images.
+* Added [GitLink](https://github.com/GitTools/GitLink) to enable github source server support for debugging.
+
+#### WebRSize 0.3.2.0
+* Fixed incorrect file extension for 404 images in the disk cache
+* Added exception handler for "Client Disconnected" errors when transmitting images from the HttpHandler
+* Added devicePixelRatio (dpr) setting to enable automatic size and quality adjustments for retina clients
+* Added "q" shortcut for quality setting
 
 See the [releases page](https://github.com/saucecontrol/PhotoSauce/releases) for previous updates.