Fix Markdown formating in README

diff --git a/README.md b/README.md
index ca408625d124167fcf9d0e8830107df4c12bbe93..1e2d5d94d0a8dd1dfdfd1d41293c5c2dc91aad55 100644 (file)
--- a/README.md
+++ b/README.md
@@ -176,7 +176,7 @@ top_left_y, width, height".
 | --visualize, -v[delay_ms] | Visualize the output, optionally with specified delay. If the delay is 0 the program will wait for a key press. |
 | --output, -o <output.txt>     | Specify name of output file. |
 | --debug, -d                           | Generate debug output. |
-| --visual_debug, -p[p|r] | Show graphical window with debugging information (either **p**atch or filter **r**esponse). |
+| --visual_debug, -p[p\|r] | Show graphical window with debugging information (either **p**atch or filter **r**esponse). |
 
 ## Automated testing