support hashed passwords; closes #39

scripts/toc.sh

@@ -16,6 +16,8 @@ cat $f | awk '
             h=0
         };
     };
+    /```/{o=!o}
+    o{next}
     /^#/{s=1;rs=0;pr()}
     /^#* *(nix package)/{rs=1}
     /^#* *(install on android|dev env setup|just the sfx|complete release|optional gpl stuff|nixos module)|`$/{s=rs}