Fix typos in jme3_ai.adoc (#120)
Fix typos in jme3_ai.adoc (#120)

Fixing typo of "dispalying" to "displaying" and "//comput ..." to "//compute ..."
jMonkeyEngine/wiki.jmonkeyengine.org,jMonkeyEngine/wiki.jmonkeyengine.org,jMonkeyEngine/wiki.jmonkeyengine.org,jMonkeyEngine/wiki.jmonkeyengine.org