Swap order of increment and decrement in Counter examples (reactjs#2382)

I think UI-wise, decrement comes first.

Author: chenglou

content/docs/hooks-reference.md

@@ -60,8 +60,8 @@ function Counter({initialCount}) {
     <>
       Count: {count}
       <button onClick={() => setCount(initialCount)}>Reset</button>
-      <button onClick={() => setCount(prevCount => prevCount + 1)}>+</button>
       <button onClick={() => setCount(prevCount => prevCount - 1)}>-</button>
+      <button onClick={() => setCount(prevCount => prevCount + 1)}>+</button>
     </>
   );
 }
@@ -231,8 +231,8 @@ function Counter() {
   return (
     <>
       Count: {state.count}
-      <button onClick={() => dispatch({type: 'increment'})}>+</button>
       <button onClick={() => dispatch({type: 'decrement'})}>-</button>
+      <button onClick={() => dispatch({type: 'increment'})}>+</button>
     </>
   );
 }
@@ -290,8 +290,8 @@ function Counter({initialCount}) {
         onClick={() => dispatch({type: 'reset', payload: initialCount})}>
         Reset
       </button>
-      <button onClick={() => dispatch({type: 'increment'})}>+</button>
       <button onClick={() => dispatch({type: 'decrement'})}>-</button>
+      <button onClick={() => dispatch({type: 'increment'})}>+</button>
     </>
   );
 }