Document highlighting for Illegal, Solved paths

1 files changed, 7 insertions, 2 deletions

diff --git a/README b/README
index b527d21..314a00f 100644
--- a/README
+++ b/README
@@ -35,6 +35,9 @@ This collection includes:
   Fornax parses /Fornax format/, generates a `PNG' for each iteration
   which is later converted to a slideshow with `ffmpeg'.
 
+  • Solved paths are highlighted if the iteration is preceded by `|'.
+  • Illegal paths are highlighted if the iteration is preceded by `!'.
+
 
 2 Fornax Format
 ═══════════════
@@ -59,8 +62,10 @@ This collection includes:
       columns) + 1' then it may be ignored by the program that parses
       the file.
 
-  • Solved iteration must be preceded by `|' character. The program may
-    or may not use it while rendering the video.
+  • Solved iteration can be preceded by `|' character.
+
+  • Iteration that tries to walk on a blocked path can be preceded by
+    `!' character.
 
 
 2.1 Grids