Update master's and bachelor's dates

- IIT-K transcript says that the semester was till July
- ETHZ officially doesn't say anything, so use the date of the thesis
  defence/presentation

index.html

@@ -105,13 +105,13 @@ <h3 class="section-title">Education</h3>
  <h4 class="list-heading">ETH Zürich</h4>
  Masters: Computer Science<br />
  Specialization: Machine Intelligence<br />
- Sep 2020 – Jan 2023
+ Sep 2020 – Oct 2022
  </li>
 
  <li>
  <h4 class="list-heading">IIT Kanpur</h4>
  Bachelors: Computer Science and Engineering<br />
- Aug 2016 – Jun 2020
+ Aug 2016 – Jul 2020
  </li>
  </ul>
  </section>