DOCS: Fix examples in documentation (#1435)

* Add example include

* Replace example includes

* Remove old example includes

docs/_functions/record/TTL.md

@@ -22,8 +22,7 @@ The value can be:
     * If no unit is specified, the default is seconds.
   * We highly recommend using units instead of the number of seconds. Would your coworkers understand your intention better if you wrote `14400` or `'4h'`?
 
-{% include startExample.html %}
-
+{% capture example %}
 ```js
 D('example.com', REGISTRAR, DnsProvider('R53'),
   DefaultTTL(2000),
@@ -33,5 +32,6 @@ D('example.com', REGISTRAR, DnsProvider('R53'),
   A('demo2', '3.4.5.12', TTL('5w')),  // 5 weeks
 );
 ```
+{% endcapture %}
 
-{% include endExample.html %}
+{% include example.html content=example %}