Removed a trailing space in the template name on line 174.
This trailing space may seem innocuous, but can be easily copied-and-pasted from the docs.
This can lead to bizarre File Not Found errors where the checked paths look correct, but actually aren't because
the trailing space is hard to see in an error message.
Merge pull request #993 from almostabc/template-include-docs-update

Removed a trailing space in the template builtins docs.