README: make listings libasciidoc-compatible

README.adoc

@@ -45,7 +45,8 @@ into the PATH of any machine you want to have 'sdn' on.
 zsh
 ---
 To start using this navigator, put the following in your .zshrc:
-....
+
+----
 sdn-navigate () {
   # ... possibly zle-line-init
   eval "`sdn`"
@@ -56,13 +57,14 @@ sdn-navigate () {
 }
 zle -N sdn-navigate
 bindkey '\eo' sdn-navigate
-....
+----
 
 bash
 ----
 Here we can't reset the prompt from within a `bind -x` handler but there is
 an acceptable workaround:
-....
+
+----
 sdn-navigate () {
   SDN_L=$READLINE_LINE SDN_P=$READLINE_POINT
   READLINE_LINE=
@@ -82,18 +84,20 @@ sdn-restore () {
 bind -x '"\200": sdn-navigate'
 bind -x '"\201": sdn-restore'
 bind '"\eo":"\200\C-m\201"'
-....
+----
 
 Colors
 ------
 Here is an example of a '~/.config/sdn/look' file; the format is similar to
 that of git, only named colors aren't supported:
-....
+
+----
 cursor 231 202
 bar 16 255 ul
 cwd bold
 input
-....
+----
+
 Filename colors are taken from the `LS_COLORS` environment variable.
 Run `dircolors` to get some defaults.