Fixed minor typo of dispose (#3330)

Changed "disipose" to "dispose" under Remarks

Author: stevemonaco

xml/System.Data.Common/DbConnection.xml

@@ -490,7 +490,7 @@
  If the <xref:System.Data.Common.DbConnection> goes out of scope, it is not closed. Therefore, you must explicitly close the connection by calling `Close` or `Dispose`, which are functionally equivalent. If the connection pooling value `Pooling` is set to `true` or `yes`, this also releases the physical connection.  
   
 > [!CAUTION]
->  Do not close or disipose a `DbConnection`, a `DbDataReader`, or any other managed object in the `Finalize` method of your class. In a finalizer, you should only release unmanaged resources that your class owns directly. If your class does not own any unmanaged resources, do not include a `Finalize` method in your class definition. For more information, see [Garbage Collection](~/docs/standard/garbage-collection/index.md).  
+>  Do not close or dispose a `DbConnection`, a `DbDataReader`, or any other managed object in the `Finalize` method of your class. In a finalizer, you should only release unmanaged resources that your class owns directly. If your class does not own any unmanaged resources, do not include a `Finalize` method in your class definition. For more information, see [Garbage Collection](~/docs/standard/garbage-collection/index.md).  
   
  ]]></format>
         </remarks>