修改section1页面中h4 section2为LB medium preparation

src/contents/experiments.tsx

@@ -168,7 +168,7 @@ export function Experiments() {
             <h2>LB medium preparation</h2>
             <p>Content for section 2.</p>
             <div className="rounded-border">
-              <h4 className="center-text">Section 2</h4>
+              <h4 className="center-text">LB medium preparation</h4>
               <p className="indent">las ijffs aiskfd fskj iiwls asd.aass ffas awssd awus iisal fask.aisisad ksjdfkaf iwjasifjakdshf wijdfalksjf wiksjkfjksalhf, gsahfjhgejkfh  uhaejkfh sjdihgfuqiw jh sjiafhjsaj fh asd.</p>
               <p className="indent">las ijffs aiskfd fskj iiwls asd.aass ffas awssd awus iisal fask.aisisad ksjdfkaf iwjasifjakdshf wijdfalksjf wiksjkfjksalhf, gsahfjhgejkfh  uhaejkfh sjdihgfuqiw jh sjiafhjsaj fh asd.</p>
             </div>