added #font method to paragraph styles

ts/docx/run/formatting.ts

@@ -1,6 +1,7 @@
 import { Attributes, XmlComponent } from "../xml-components";
 export { Underline } from "./underline";
 export { SubScript, SuperScript } from "./script";
+export { RunFonts } from "./run-fonts";
 
 export class Bold extends XmlComponent {
 

ts/styles/style/index.ts

@@ -131,6 +131,13 @@ export class ParagraphStyle extends Style {
         return this;
     }
 
+    public font(fontName: string): ParagraphStyle {
+        this.addRunProperty(new formatting.RunFonts(fontName));
+        return this;
+    }
+
+    // --------------------- Paragraph formatting ------------------------ //
+
     public indent(left: number, hanging?: number): ParagraphStyle {
         this.addParagraphProperty(new Indent(left, hanging));
         return this;

ts/tests/stylesTest.ts

@@ -320,6 +320,19 @@ describe("ParagraphStyle", () => {
             });
         });
 
+        it("#font", () => {
+            const style = new ParagraphStyle("myStyleId")
+                .font("Times");
+            const tree = new Formatter().format(style);
+            expect(tree).to.deep.equal({
+                "w:style": [
+                    {_attr: {"w:type": "paragraph", "w:styleId": "myStyleId"}},
+                    {"w:pPr": []},
+                    {"w:rPr": [{"w:rFonts": [{_attr: {"w:ascii": "Times", "w:hAnsi": "Times"}}]}]},
+                ],
+            });
+        });
+
         it("#bold", () => {
             const style = new ParagraphStyle("myStyleId")
                 .bold();