Fix syntax bugs

content/docs/guide/classes.mdx

@@ -40,17 +40,17 @@ class Dog : Animal {
         super(name);
     }
 
-    override void speak(&self)
+    void speak(&self) override
     {
         println!("Woof!");
     }
 }
 ```
 
-The `override` keyword supports explicit base class targeting:
+The `override` keyword supports explicit base class targeting (Required if overriding a nested parent):
 
 ```mist
-override(Animal) void speak(&self)
+void speak(&self) override(Animal)
 {
     println!("Woof!");
 }