docs: Port backend-specific sections to markdown

clutter/cex100/clutter-backend-cex100.c

@@ -142,7 +142,7 @@ clutter_backend_cex100_init (ClutterBackendCex100 *backend_cex100)
  * the stage will be drawn. By default Clutter will pick UPP_C
  * (GDL_PLANE_ID_UPP_C).
  *
- * <note>This function has to be called before clutter_init()</note>
+ * This function has to be called before clutter_init().
  *
  * Since: 1.6
  */
@@ -164,7 +164,7 @@ clutter_cex100_set_plane (gdl_plane_id_t plane)
  *
  * Clutter defaults to %CLUTTER_CEX100_TRIPLE_BUFFERING.
  *
- * <note>This function has to be called before clutter_init()</note>
+ * This function has to be called before clutter_init().
  *
  * Since: 1.6
  */

clutter/cex100/clutter-cex100.h.in

@@ -29,8 +29,7 @@
  * The CEX100 backend for Clutter provides some Intel CE3100/CE4100
  * specific API
  *
- * You need to include
- * <filename class="headerfile">&lt;clutter/cex100/clutter-cex100.h&gt;</filename>
+ * You need to include `clutter/cex100/clutter-cex100.h`
  * to have access to the functions documented here.
  */
 

clutter/egl/clutter-egl.h

@@ -29,9 +29,7 @@
  *
  * The EGL backend for Clutter provides some EGL specific API
  *
- * You need to include
- * <filename class="headerfile">&lt;clutter/egl/clutter-egl.h&gt;</filename>
- * to have access to the functions documented here.
+ * You need to include `clutter-egl.h` to have access to the functions documented here.
  */
 
 #ifndef __CLUTTER_EGL_H__

clutter/wayland/clutter-backend-wayland.c

@@ -359,8 +359,7 @@ clutter_wayland_set_display (struct wl_display *display)
  * event dispatch; in general only a single source should be acting on changes
  * on the Wayland file descriptor.
  *
- * <warning>This function can only be called before calling
- * clutter_init().</warning>
+ * This function can only be called before calling clutter_init().
  *
  * This function should not be normally used by applications.
  *

clutter/x11/clutter-backend-x11.c

@@ -949,15 +949,14 @@ clutter_x11_enable_xinput (void)
  * You also must call clutter_x11_handle_event() to let Clutter process
  * events and maintain its internal state.
  *
- * <warning>This function can only be called before calling
- * clutter_init().</warning>
+ * This function can only be called before calling clutter_init().
  *
- * <note>Even with event handling disabled, Clutter will still select
+ * Even with event handling disabled, Clutter will still select
  * all the events required to maintain its internal state on the stage
  * Window; compositors using Clutter and input regions to pass events
  * through to application windows should not rely on an empty input
  * region, and should instead clear it themselves explicitly using the
- * XFixes extension.</note>
+ * XFixes extension.
  *
  * This function should not be normally used by applications.
  *
@@ -1262,13 +1261,13 @@ clutter_x11_has_composite_extension (void)
  *
  * By default, Clutter requests RGB visuals.
  *
- * <note>If no ARGB visuals are found, the X11 backend will fall back to
- * requesting a RGB visual instead.</note>
+ * If no ARGB visuals are found, the X11 backend will fall back to
+ * requesting a RGB visual instead.
  *
  * ARGB visuals are required for the #ClutterStage:use-alpha property to work.
  *
- * <note>This function can only be called once, and before clutter_init() is
- * called.</note>
+ * This function can only be called once, and before clutter_init() is
+ * called.
  *
  * Since: 1.2
  */