add support for pandoc templates in final conversion

README.md

@@ -73,6 +73,7 @@ Usage: pandiff [OPTIONS] FILE1 FILE2
   -h, --help
       --highlight-style=STRING
       --lua-filter=FILE
+      --template=STRING
       --mathjax=BOOL
       --mathml=BOOL
   -o, --output=FILE

src/cli.ts

@@ -40,6 +40,7 @@ const optionDefinitions: commandLineArgs.OptionDefinition[] = [
   {name: 'help', alias: 'h', type: Boolean},
   {name: 'highlight-style', type: String},
   {name: 'lua-filter', type: File, multiple: true},
+  {name: 'template', type: String},
   {name: 'mathjax', type: Boolean},
   {name: 'mathml', type: Boolean},
   {name: 'output', alias: 'o', type: File},

src/index.ts

@@ -419,6 +419,7 @@ async function postrender(text: string, opts: pandiff.Options = {}) {
     opts,
     'highlight-style',
     'output',
+    'template',
     'pdf-engine',
     'metadata-file',
     'reference-doc',
@@ -470,6 +471,7 @@ namespace pandiff { // eslint-disable-line
     help?: boolean;
     'highlight-style'?: string;
     'lua-filter'?: File[];
+    template?: string;
     output?: File;
     'pdf-engine'?: string;
     'reference-links'?: boolean;