Miscellaneous audio updates

Add term "line level"
Change page title to match content
Update term I2S
Fix missing p tag
Add newline at EOF

Change-Id: I8cefdf349ea5231656061db4e75bef48197e871e
diff --git a/src/devices/audio/implement.jd b/src/devices/audio/implement.jd
index 28f06b7..f8e2116 100644
--- a/src/devices/audio/implement.jd
+++ b/src/devices/audio/implement.jd
@@ -1,4 +1,4 @@
-page.title=Audio
+page.title=Audio Implementation
 @jd:body
 
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