Updated README to mention gallery.cache

diff --git a/gal/README b/gal/README
index 893a6e5e41ef8211544be29a756f88d16c7a09bc..0a5d7c7a4c7b6bc281c05170992afab121ee8677 100644 (file)
--- a/gal/README
+++ b/gal/README
@@ -2,7 +2,7 @@
 
                               UCW::Gallery v2.0
 
-                   (c) 2004--2014 Martin Mares <mj@ucw.cz>
+                   (c) 2004--2015 Martin Mares <mj@ucw.cz>
 
 ================================================================================
 
@@ -43,6 +43,8 @@ Files and directories
       Usually created by "gal scan", then tweaked manually. See `FORMATS' for
       description of file syntax.
 
+   o  gallery.cache -- used internally by "gal scan" to store cached image hashes.
+
    o  Originals directory -- original images, from which the gallery is generated.
 
    o  Photo directory -- keeps processed (usually down-scaled) versions of the original
@@ -83,3 +85,4 @@ Workflow
        - When you want to add new images, re-run "gal scan". Give it the new list
          of images and it will try to re-use as much information from the previous
          gallery.list as possible.
+       - When you modify existing images, run "gal scan --update".