Docs: Add filesystem-config to nav, fix title

Bug: 20102980
Change-Id: Iba1fb663a20975511e1a57e6e2bf98e9a0cfdbab
diff --git a/src/devices/tech/filesystem-config.jd b/src/devices/tech/filesystem-config.jd
index 46a2ffc..01dbb32 100644
--- a/src/devices/tech/filesystem-config.jd
+++ b/src/devices/tech/filesystem-config.jd
@@ -1,4 +1,4 @@
-page.title=Configuring the Filesystem
+page.title=Configuring the File System
 @jd:body
 
 <!--