Fix character entities

These are not supposed to be supported by gtk-doc¹

¹https://bugzilla.gnome.org/show_bug.cgi?id=758137

https://bugzilla.gnome.org/show_bug.cgi?id=758175

gtk/gtkrecentmanager.h

@@ -55,7 +55,7 @@ typedef struct _GtkRecentManagerPrivate GtkRecentManagerPrivate;
  * @app_name: the name of the application that is registering this recently
  *   used resource;
  * @app_exec: command line used to launch this resource; may contain the
- *   “%f” and “%u” escape characters which will be expanded
+ *   “\%f” and “\%u” escape characters which will be expanded
  *   to the resource file path and URI respectively when the command line
  *   is retrieved;
  * @groups: (array zero-terminated=1): a vector of strings containing

gtk/gtkrender.c

@@ -213,7 +213,7 @@ gtk_do_render_arrow (GtkStyleContext *context,
  *
  * Renders an arrow pointing to @angle.
  *
- * Typical arrow rendering at 0, 1&solidus;2 π, π and 3&solidus;2 π:
+ * Typical arrow rendering at 0, 1⁄2 π;, π; and 3⁄2 π:
  *
  * ![](arrows.png)
  *

gtk/gtktextview.c

@@ -10328,7 +10328,7 @@ gtk_text_view_get_css_node (GtkTextView       *text_view,
  *
  * Usually used to find out which window an event corresponds to.
  * If you connect to an event signal on @text_view, this function
- * should be called on `event->window` to
+ * should be called on `event->window` to
  * see which window it was.
  *
  * Returns: the window type.