Word template

[noamross]

Holding issue for later on, but at some point we should probably create a stand Word/Memo template, probably in response to a specific team request. outbreak_word is the old version of this, and can be the basis but should be upgraded to use officedown::rdocx_document rather than some of the hacks in that function.

Here's an old outbreak_word output for reference, perhaps for @collinschwantes use in your presentation next week as "We can develop other specialized outputs, file an issue if you need one.": https://raw.githubusercontent.com/ecohealthalliance/livescience/gh-pages/predict/reports/2019-07-26-edi-sads-cov.pdf

[collinschwantes]

@noamross Create a set of documents/memos to be used to create a template