Fix usage instruction at bin/workshop_check.py

Close #152.

diff --git a/bin/workshop_check.py b/bin/workshop_check.py
index 87b9ec8b2976f329c8be16031e954bbb757250fe..cd3a8bfc822efd8a432ccebd6f8bd73a2307ff61 100755 (executable)
--- a/bin/workshop_check.py
+++ b/bin/workshop_check.py
@@ -21,7 +21,7 @@ URL_PATTERN = r'https?://.+'
 CARPENTRIES = ("dc", "swc")
 DEFAULT_CONTACT_EMAIL = 'admin@software-carpentry.org'
 
-USAGE = 'Usage: "check-workshop path/to/root/directory"'
+USAGE = 'Usage: "workshop_check.py path/to/root/directory"'
 
 # Country and language codes.  Note that codes mean different things: 'ar'
 # is 'Arabic' as a language but 'Argentina' as a country.