Update README_head.txt

Assets/Scene 1 Assets/README_head.txt

@@ -3,3 +3,7 @@ In order to add a headshot to a textbox:
   2.  Set the animator to use in animator.
   3.  Make sure the render mode is on "Screen Space - Camera"
     3a. Set the render camera to Main Camera.
+  4.  Type the talking emote value in the emotes list under the Canvas. The emote with that value
+      will play on that page depending on their respective indices.
+      4a. The amount of emotes MUST match the number of pages
+      4b. The animation should be formatted so that the idle emote comes before the talking emote.