Update Readme

Author: zorglube

README.md

@@ -53,15 +53,13 @@ The javadoc for the last release is available [here](http://www.javadoc.io/doc/o
 Create a workbook with a single worksheet and a few cells with the different supported data types.
 
 ```java
-try (OutputStream os = ...) {
-    Workbook wb = new Workbook(os, "MyApplication", "1.0");
+try (OutputStream os = ..., Workbook wb = new Workbook(os, "MyApplication", "1.0");) {
     Worksheet ws = wb.newWorksheet("Sheet 1");
     ws.value(0, 0, "This is a string in A1");
     ws.value(0, 1, new Date());
     ws.value(0, 2, 1234);
     ws.value(0, 3, 123456L);
     ws.value(0, 4, 1.234);
-    wb.finish();
 }
 ```
 
@@ -277,8 +275,7 @@ ws.fitToHeight(999);
 
 Each worksheet is generated by a different thread.
 ```java
-try (OutputStream os = ...) {
-    Workbook wb = new Workbook(os, "MyApplication", "1.0");
+try (OutputStream os = ...;  Workbook wb = new Workbook(os, "MyApplication", "1.0");) {
     Worksheet ws1 = wb.newWorksheet("Sheet 1");
     Worksheet ws2 = wb.newWorksheet("Sheet 2");
     CompletableFuture<Void> cf1 = CompletableFuture.runAsync(() -> {
@@ -290,7 +287,6 @@ try (OutputStream os = ...) {
         ...
     });
     CompletableFuture.allOf(cf1, cf2).get();
-    wb.finish();
 }
 ```