fixed broken emoji.

src/docs/asciidoc/jme3/intermediate/best_practices.adoc

@@ -4,6 +4,7 @@
 :revdate: 2017/11/26 13:30
 :relfileprefix: ../../
 :imagesdir: ../..
+:stylesheet: twemoji-awesome.css
 ifdef::env-github,env-browser[:outfilesuffix: .adoc]
 
 

src/docs/asciidoc/jme3/rotate.adoc

@@ -4,6 +4,7 @@
 :revdate: 2016/03/17 20:48
 :relfileprefix: ../
 :imagesdir: ..
+:stylesheet: twemoji-awesome.css
 ifdef::env-github,env-browser[:outfilesuffix: .adoc]
 
 
@@ -90,7 +91,7 @@ a| three quarter circle, 9 o'clock
 
 a|360 degrees
 a| FastMath.PI * 2
-a| full circle, 12  o'clock emoji:wink
+a| full circle, 12  o'clock emoji:wink[]
 
 a|`g` degrees
 a| FastMath.PI * g / 180