Replaced pictures not to use duckduckgo proxy

Author: Vitalii-code

Wireframe/index.html

@@ -17,7 +17,7 @@ <h1>Userful things to know as a software developer</h1>
     <main>
       <article>
         <img
-          src="https://external-content.duckduckgo.com/iu/?u=https%3A%2F%2Falexwlchan.net%2Fimages%2F2021%2Freadmes-for-open-science%2Fslide6.png&f=1&nofb=1&ipt=8d1b781a7151a84e0a93ee0ccf6b730ab844953d13f7201b453c4f13c9ce251e"
+          src="https://alexwlchan.net/images/2021/readmes-for-open-science/slide6_1x.avif"
           alt=""
         />
         <h2>What is a README?</h2>
@@ -29,10 +29,7 @@ <h2>What is a README?</h2>
         <a href="https://en.wikipedia.org/wiki/README">Read more</a>
       </article>
       <article>
-        <img
-          src="https://external-content.duckduckgo.com/iu/?u=https%3A%2F%2Fmiro.medium.com%2Fmax%2F1800%2F0*FVLOt7Tx7P3zPI7T.jpg&f=1&nofb=1&ipt=22e2fa20d0152f16524491be50411071460aa35aa7a53970aaebe0ad7da702db"
-          alt=""
-        />
+        <img src="https://miro.medium.com/v2/0*FVLOt7Tx7P3zPI7T.jpg" alt="" />
         <h2>What's the purpose of a wireframe?</h2>
         <p>
           Wireframes can be used to sketch a website. UX designers use them to
@@ -44,7 +41,7 @@ <h2>What's the purpose of a wireframe?</h2>
       </article>
       <article>
         <img
-          src="https://external-content.duckduckgo.com/iu/?u=https%3A%2F%2Fwww.atatus.com%2Fblog%2Fcontent%2Fimages%2Fsize%2Fw1920%2F2021%2F06%2Fwhat-is-branch-in-git.jpeg&f=1&nofb=1&ipt=7b3c5edc73dc13d7ad8d60389bda81866d17d80f5c02af759033bfa1f20d8b63"
+          src="https://miro.medium.com/v2/1*K9scAx1Ezd-KJFabaYseCw.jpeg"
           alt=""
         />
         <h2>What is a branch in Git?</h2>