[gtk/ebassi/gidocgen] passwordentry: Use markdown for css tree

[Matthias Clasen <matthiasc src gnome org>]

commit 175969b1a4134133dc28bf045d4793364d469bb7
Author: Matthias Clasen <mclasen redhat com>
Date:   Sat Feb 27 20:03:43 2021 -0500

    passwordentry: Use markdown for css tree

 gtk/gtkpasswordentry.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/gtk/gtkpasswordentry.c b/gtk/gtkpasswordentry.c
index f267325cba..8096299fb5 100644
--- a/gtk/gtkpasswordentry.c
+++ b/gtk/gtkpasswordentry.c
@@ -58,12 +58,12 @@
  *
  * # CSS Nodes
  *
- * |[<!-- language="plain" -->
+ * ```
  * entry.password
  * ╰── text
  *     ├── image.caps-lock-indicator
  *     ┊
- * ]|
+ * ```
  *
  * `GtkPasswordEntry` has a single CSS node with name entry that carries
  * a .passwordstyle class. The text Css node below it has a child with