diff --git a/README.md b/README.md
index baf0e87..eece29d 100644
--- a/README.md
+++ b/README.md
@@ -20,4 +20,18 @@ sup
 ---
 A very simple tool to upload files to the zfh.so file hosting
 
-	Usage: sup [-RsF] [-D num] [file/url]
+	Usage: sup [-RsF] [-D num] [file/url]"
+	Flags:
+	    -R                   # Remove the file after uploading.
+	    -s                   # Make a screenshot and upload it instead of a file.
+	    -F                   # Make a fullscreen shot instead of prompting for a window/area. Implies -s.
+	    -D <num>             # Delay the shot by <num> seconds.
+	    -p                   # Make the file private. Requires $secret to be set in the config.
+
+	Config options (~/.suprc):
+	    secret               # Your personal token. Get it at https://zfh.so/settings_form
+	    cfg_screenshot_ext   # Screenshot file type, used by scrot.
+	    # Others are self-explanatory:
+	    cfg_url_regex
+	    cfg_tmp_dir
+	    cfg_script_url