Fix example using #with helper

Example using #with helper should close tag using {{/with}}

README.markdown

@@ -134,7 +134,7 @@ into the person object you could still display the company's name with
 an expression like `{{../company.name}}`, so:
 
 ```
-{{#with person}}{{name}} - {{../company.name}}{{/person}}
+{{#with person}}{{name}} - {{../company.name}}{{/with}}
 ```
 
 would render: