Add support for flow content in markdown in JSDoc

lib/render.js

@@ -308,8 +308,15 @@ function createInfo(state, annotation) {
   removePosition(tree, {force: true})
 
   for (const [name, text] of tags) {
-    const value = '**@' + name + '**' + (text ? ' ' + text : '')
-    const fragment = fromMarkdown(value)
+    // Idea: support `{@link}` stuff.
+    //
+    // Use a `\n` here to join so that it’ll work when it is fenced code for
+    // example.
+    const value = '**@' + name + '**' + (text ? '\n' + text : '')
+    const fragment = fromMarkdown(value, {
+      extensions: [gfm()],
+      mdastExtensions: [gfmFromMarkdown()]
+    })
     removePosition(fragment, {force: true})
 
     list.children.push({

test/fixtures/errors/output.html

@@ -23,8 +23,10 @@
 <div class="rehype-twoslash-hover rehype-twoslash-popover" id="rehype-twoslash-e2lxOccc-2" popover=""><pre class="rehype-twoslash-popover-code"><code class="language-ts"><span class="pl-k">let</span> <span class="pl-smi">x</span><span class="pl-k">:</span> [<span class="pl-c1">string</span>, <span class="pl-c1">number</span>]</code></pre></div>
 <div class="rehype-twoslash-hover rehype-twoslash-popover" id="rehype-twoslash-e2lxOccc-3" popover=""><pre class="rehype-twoslash-popover-code"><code class="language-ts">(<span class="pl-smi">method</span>) <span class="pl-c1">String</span>.<span class="pl-c1">substring</span>(<span class="pl-smi">start</span>: <span class="pl-smi">number</span>, <span class="pl-smi">end</span><span class="pl-k">?:</span> <span class="pl-smi">number</span>): <span class="pl-smi">string</span></code></pre><div class="rehype-twoslash-popover-description"><p>Returns the substring at the specified location within a String object.</p>
 <ul>
-<li><strong>@param</strong> start The zero-based index number indicating the beginning of the substring.</li>
-<li><strong>@param</strong> end Zero-based index number indicating the end of the substring. The substring includes the characters up to, but not including, the character indicated by end.
+<li><strong>@param</strong>
+start The zero-based index number indicating the beginning of the substring.</li>
+<li><strong>@param</strong>
+end Zero-based index number indicating the end of the substring. The substring includes the characters up to, but not including, the character indicated by end.
 If end is omitted, the characters from start through the end of the original string are returned.</li>
 </ul></div></div>
 <div class="rehype-twoslash-hover rehype-twoslash-popover" id="rehype-twoslash-e2lxOccc-4" popover=""><pre class="rehype-twoslash-popover-code"><code class="language-ts"><span class="pl-k">var</span> <span class="pl-smi">console</span><span class="pl-k">:</span> <span class="pl-en">Console</span></code></pre></div>