Manual: Update PictureFlow

- Update the manual entry for PictureFlow with
the latest features and fix keymap

- Strongly suggest enabling the database's
"Load to RAM" feature (in my experience, this
can lead to a ~60x speedup when building the
album index)

- Suggest enabling the dircache, as it can
noticeably improve the loading times for
album art.

Change-Id: I12c7ce5d5388159da1790fc125f2e20bb78dbf96

1 files changed, 2 insertions, 1 deletions

diff --git a/manual/configure_rockbox/system_options.tex b/manual/configure_rockbox/system_options.tex
index 32c389e593..99ccde0265 100755
--- a/manual/configure_rockbox/system_options.tex
+++ b/manual/configure_rockbox/system_options.tex
@@ -77,6 +77,7 @@
     }
 
     \opt{dircache}{
+    \label{ref:dircache}
     \item [Directory Cache.] Rockbox has the ability to cache the contents of
       your drive in RAM. The \setting{Directory Cache} takes a small amount of
       memory away from Rockbox that would otherwise be used to buffer music,
@@ -302,7 +303,7 @@ therefore result in better runtime.
                 \item[Disable All Lock Notifications]
                 Disable all softlock notifications, including when power button
                 is pressed.
-                \note{When this is enabled, Disable Locked Reminders is still required to 
+                \note{When this is enabled, Disable Locked Reminders is still required to
                 be enabled for \setting{selectivebacklight} \reference{ref:selectivebacklight}
                 to work during key lock.}