Note about environment variables

diff --git a/README b/README
index eb3e410f168ef84fee3497a016c1202d69e3ff3c..36251cce2f9ca83701ba9368eb93bf2a2158b5ec 100644 (file)
--- a/README
+++ b/README
@@ -10,6 +10,11 @@ each file the small preview will be generated in lossy WebP format. Also
 corresponding HTML file is generated too, containing information about
 the picture and its metadata.
 
+You can set the following environment variables:
+* PAGESIZE (100 by default)
+* ORDERING ("Om" by default, zsh glob notation)
+* STYLE (URL to CSS file, by default is none, no stylesheet link is set)
+
 If it is JPEG XL, then, for compatibility reason with non-bleeding edge
 software, alternative format is generated too: either JPEG (if JPEG XL
 contains losslessly transcoded JPEG), or PNG (leaving off the alpha channel).