remove example

Author: shuangela

source/usage-examples.txt

@@ -26,7 +26,7 @@ Usage Examples
    Delete </usage-examples/delete-operations>
    Count Documents </usage-examples/count>
    Distinct Field Values </usage-examples/distinct>
-   Run a Command Example </usage-examples/command>
+   Run a Command </usage-examples/command>
    Watch for Changes </usage-examples/changeStream>
    Bulk Operations </usage-examples/bulkWrite>
    Perform a Transaction </usage-examples/transactions>