typo

docs/Getting-Started-with-Balance-Ball.md

 Agent is using a trained model or heuristics or direct control — in other 
 words, whenever **not** training.)
 Typically, you would set a low graphics quality and timescale to greater `1.0` for the **Training
-configuration** and a high graphics quality and timescale to `1.0` for the
+Configuration** and a high graphics quality and timescale to `1.0` for the
 **Inference Configuration** .
 
 **Note:** if you want to observe the environment during training, you can adjust
 
-Another aspect of an environment to look at is the Academy implementation. Since
+Another aspect of an environment is the Academy implementation. Since
 the base Academy class is abstract, you must always define a subclass. There are
 three functions you can implement, though they are all optional: