HaikuBook: fix some errors and warnings during documentation generation

Change-Id: Ib6b876ff83aeba0d2346990ab2e9869cbf519284
Reviewed-on: https://review.haiku-os.org/c/haiku/+/6641
Tested-by: Commit checker robot <[email protected]>
Reviewed-by: Adrien Destugues <[email protected]>

docs/user/Doxyfile

@@ -931,6 +931,7 @@ INPUT                  = . \
                          ../../headers/os/device/Joystick.h \
                          ../../headers/os/drivers/fs_interface.h \
                          ../../headers/os/drivers/USB3.h \
+                         ../../headers/os/drivers/USB_isochronous.h \
                          ../../headers/os/drivers/USB_spec.h \
                          ../../headers/os/game \
                          ../../headers/os/interface \
@@ -941,6 +942,7 @@ INPUT                  = . \
                          ../../headers/os/midi2 \
                          ../../headers/os/net \
                          ../../headers/private/netservices2 \
+                         ../../headers/private/shared/MemoryRingIO.h \
                          ../../headers/os/storage \
                          ../../headers/os/support \
                          ../../headers/os/translation \

docs/user/interface/_interface_intro.dox

@@ -11,7 +11,7 @@
 	\page interface_intro Introduction to the Interface Kit
 	\ingroup interface
 
-	\section Overview
+	\section Interface Overview
 
 	The Interface Kit holds all the classes you'll need to develop a GUI.
 	Building on the messaging facilities provided by the Application Kit,

docs/user/support/support_intro.dox

@@ -38,7 +38,7 @@
 	look at the overview, or go straight to the complete
 	\link support list of components \endlink of this kit.
 
-	\section Overview
+	\section Support Overview
 	- Thread Safety:
 		- BLocker provides a semaphore-like locking mechanism allowing for
 			recursive locks.