Update README

angelbotto · Aug 2, 2013 · caf1086 · caf1086
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diff --git a/README.md b/README.md
@@ -142,6 +142,16 @@ png = psd.image.to_png # reference to PNG data
 psd.image.save_as_png 'path/to/output.png' # writes PNG to disk
 ```
 
+**Debugging**
+
+If you run into any problems parsing a PSD, you can enable debug logging via the `PSD_DEBUG` environment variable. For example:
+
+``` bash
+PSD_DEBUG=STDOUT bundle exec examples/parse.rb
+```
+
+You can also give a path to a file instead.
+
 ## To-do
 
 There are a few features that are currently missing from PSD.rb.