Update camera.adoc

Fixed broken table. Tables need a space after the list to work right.
Changed text tip to Admonition.

src/docs/asciidoc/jme3/advanced/camera.adoc

@@ -26,6 +26,7 @@ The camera object is created with the following defaults:
 
 *  Start location at (0f, 0f, 10f).
 *  Start direction is looking at the origin.
+
 [cols="2", options="header"]
 |===
 
@@ -76,7 +77,10 @@ a|?
 
 |===
 
-*Tip:* After you change view port, frustum, or frame, call `cam.update();`
+[TIP]
+====
+After you change view port, frustum, or frame, call `cam.update();`
+====
 
 
 == FlyBy Camera