diff --git a/devTools/minify/README.md b/devTools/minify/README.md
index e1ebf4fc9619fffa62142222b37fa33af9c740db..79dee7f67b3c98b8d1fe611a8a81f562415096f2 100644
--- a/devTools/minify/README.md
+++ b/devTools/minify/README.md
@@ -1,4 +1,4 @@
-# Minify [![Join the chat at https://gitter.im/tdewolff/minify](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/tdewolff/minify?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
+# Minify
 
 **[Download binaries](https://github.com/tdewolff/minify/releases) for Windows, Linux and macOS**
 
@@ -22,6 +22,8 @@ If you do not have `make`, instead run the following lines to install `minify` a
     go install ./cmd/minify
     source minify_bash_tab_completion
 
+Optionally, you can run `go install github.com/tdewolff/minify/cmd/minify@latest` to install the latest version.
+
 ### Arch Linux
 Using `yay`:
 
@@ -57,6 +59,26 @@ Install minify deb package:
 sudo apt-get install minify
 ```
 
+### Docker
+Pull the image:
+
+```
+docker pull tdewolff/minify
+```
+
+and run the image, for example in interactive mode:
+
+```
+docker run -i tdewolff/minify
+echo "(function(){ if (a == false) { return 0; } else { return 1; } })();" | minify --type js
+```
+
+which will output
+
+```
+(function(){return a==!1?0:1})()
+```
+
 ## Usage
     Usage: minify [options] [input]
 
@@ -81,7 +103,8 @@ sudo apt-get install minify
           --memprofile string                Export memory profile
           --mime string                      Mimetype (eg. text/css), optional for input filenames, has precedence over --type
       -o, --output string                    Output file or directory (must have trailing slash), leave blank to use stdout
-	  -p, --preserve-links                   Copy symbolic links without dereferencing and without minifying the referenced file (only with --sync)
+      -p, --preserve[=mode,ownership,timestamp]   Preserve options (mode, ownership, timestamps, links)
+	  --preserve-links                   Copy symbolic links without dereferencing and without minifying the referenced file (only with --sync)
       -r, --recursive                        Recursively minify directories
           --svg-precision int                Number of significant digits to preserve in numbers, 0 is all (default 0)
 	  -s, --sync                             Copy all files to destination directory and minify when filetype matches
diff --git a/devTools/minify/minify_darwin_amd64 b/devTools/minify/minify_darwin_amd64
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diff --git a/devTools/minify/minify_linux_amd64 b/devTools/minify/minify_linux_amd64
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diff --git a/devTools/minify/minify_win_amd64.exe b/devTools/minify/minify_win_amd64.exe
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