core: remove extra quote

packages/hydrooj/package.json

@@ -1,6 +1,6 @@
 {
     "name": "hydrooj",
-    "version": "2.24.10",
+    "version": "2.24.11",
     "bin": "bin/hydrooj.js",
     "main": "dist/loader.js",
     "typings": "dist/loader.d.ts",

packages/hydrooj/src/lib/content.ts

@@ -41,7 +41,7 @@ export function buildContent(source: ProblemSource | ContentNode[], type: 'markd
         ? [
             ...source.description ? [`<h2>${_('Description')}</h2>`, source.description] : [],
             ...source.input ? [`<h2>${_('Input Format')}</h2>`, source.input] : [],
-            ...source.output ? [`<h2>'${_('Output Format')}</h2>`, source.output] : [],
+            ...source.output ? [`<h2>${_('Output Format')}</h2>`, source.output] : [],
             ...(source.samples).map((sample, i) => [
                 `<h2>${_('Sample Input')} ${i + 1}</h2><pre>`,
                 sample[0],