Handlebar support

[NoPretzel]

Sendgrid recently added handlebar support:

https://github.com/sendgrid/sendgrid-python/blob/master/use_cases/transational_templates.md

[andriisoldatenko]

@NoPretzel 404 link.

[martey]

The link is now https://github.com/sendgrid/sendgrid-python/blob/master/use_cases/transactional_templates.md (see sendgrid/sendgrid-python@76ac470).

[knivets]

Are there plans to add support for this feature?