seo: fix page has broken image issue (#706)

apps/website/blog/2021-12-23-front-end-vs-back-end-system-design-interviews.md

@@ -4,7 +4,7 @@ slug: front-end-vs-back-end-system-design-interviews
 author: Zhenghao He
 author_title: Senior Software Engineer at Instacart, ex-Amazon
 author_url: https://twitter.com/he_zhenghao
-author_image_url: https://pbs.twimg.com/profile_images/1489749168767660032/M_us3Mu2_400x400.jpg
+author_image_url: /img/authors/zhenghao.jpg
 tags: [front end, back end, system design, interview]
 hide_table_of_contents: true
 ---

apps/website/blog/2022-04-20-take-control-over-your-coding-interview copy.md

@@ -4,7 +4,7 @@ slug: take-control-over-your-coding-interview
 author: Zhenghao He
 author_title: Senior Software Engineer at Instacart, ex-Amazon
 author_url: https://twitter.com/he_zhenghao
-author_image_url: https://pbs.twimg.com/profile_images/1489749168767660032/M_us3Mu2_400x400.jpg
+author_image_url: /img/authors/zhenghao.jpg
 tags: [interview]
 ---
 

apps/website/blog/2022-04-21-why-you-should-include-debugging-in-the-interview-process.md

@@ -4,7 +4,7 @@ slug: why-you-should-include-debugging-in-the-interview-process
 author: Zhenghao He
 author_title: Senior Software Engineer at Instacart, ex-Amazon
 author_url: https://twitter.com/he_zhenghao
-author_image_url: https://pbs.twimg.com/profile_images/1489749168767660032/M_us3Mu2_400x400.jpg
+author_image_url: /img/authors/zhenghao.jpg
 tags: [interview, debugging]
 ---