Switch affiliations to a numbered list

Refs greenelab#230

content/00.front-matter.md

@@ -23,6 +23,7 @@ on {{date}}.
 
 ## Authors
 
+<!-- commented out for https://github.com/greenelab/meta-review/issues/230
 {## Template for listing authors ##}
 {% for author in authors %}
 + **{{author.name}}** {% if author.correspondence is defined and author.correspondence == true -%}^[✉](#correspondence)^{%- endif -%}<br>
@@ -52,3 +53,21 @@ on {{date}}.
 ✉ — correspondence preferred via [GitHub Issues](https://github.com/greenelab/meta-review/issues).
 Otherwise, address correspondence to <[email protected]> and <[email protected]>.
 :::
+-->
+
+{## Template for listing authors with numbered affiliations according to https://github.com/greenelab/meta-review/issues/230 ##}
+{% for author in authors %}
+{{author.name}}^{{author.affiliation_numbers | join(',')}}{% if author.correspondence is defined and author.correspondence == true -%}[*](#correspondence){%- endif -%}^
+{%- if not loop.last -%}, {%- endif -%}
+{% endfor %}
+
+
+{% for affiliation in affiliations %}
+{{affiliation.affiliation_number}}. {{affiliation.affiliation}}
+{%- endfor %}
+
+
+::: {#correspondence}
+\* — correspondence preferred via [GitHub Issues](https://github.com/greenelab/meta-review/issues).
+Otherwise, address correspondence to <[email protected]> and <[email protected]>.
+:::