Change line 825 to parse until error or endremote

I'm not sure if ``endtruncate`` was intentional or not, but it seems to have to relavance in the example. When I remove the {% error %} tag that is supposed to be optional the example crashes. If replace 'endtruncate' with 'endremote' at line 850, it works.
Merge pull request #15 from metasansana/parse-until-endremote-not-endtruncate

Change line 825 to parse until error or endremote