chore: added a test case

Author: talatkuyuk

README.md

@@ -134,6 +134,7 @@ All options are **optional** and have **default values**.
 
 ```typescript
 type RestrictedRecord = Record<string, unknown> & { className?: never };
+
 type TagNameFunction = (type?: string, title?: string) => string;
 type ClassNameFunction = (type?: string, title?: string) => string[];
 type PropertyFunction = (type?: string, title?: string) => RestrictedRecord;

tests/without_options.spec.ts

@@ -140,6 +140,19 @@ describe("no options - success", () => {
     );
   });
 
+  // ******************************************
+  it("No type, no title, with content (no empty lines)", async () => {
+    const input = dedent`
+      :::
+      **bold**
+      :::
+    `;
+
+    expect(await process(input)).toMatchInlineSnapshot(
+      `"<div class="remark-container"><p><strong>bold</strong></p></div>"`,
+    );
+  });
+
   // ******************************************
   it("Type is defined, no title, no content", async () => {
     const input = dedent`