pidgin/nest

Added link to the portable Windows zip on Sourceforce ([NEST-31](https://issues.imfreedom.org/issue/NEST-31))

Added link to the portable Windows zip on Sourceforce NEST-31
Also added a single line to describe Finch NEST-30

Testing Done:
Firefox 80.0.1 (64-bit)

Bugs closed: NEST-30, NEST-31

Reviewed at https://reviews.imfreedom.org/r/133/
{{- if .IsNamedParams -}}
{{- $scheme := or (.Get "scheme") "https" -}}
{{- $repo := .Get "name" -}}
{{- if eq (.Get "link") "1" -}}<a href="{{print $scheme "://" (index .Site.Data.repos $repo) }}">{{- end -}}
{{- if eq (.Get "short") "1" -}}{{- .Get "name" -}}{{- else -}}{{- index .Site.Data.repos $repo -}}{{- end -}}
{{- if eq (.Get "link") "1" -}}</a>{{- end -}}
{{- else -}}
{{- index .Site.Data.repos (.Get 0) -}}
{{- end -}}