Updated Hackweek info and Reference materials. (#51)

Author: Muqeet-Salam

README.md

@@ -21,6 +21,7 @@ We feel that open source encourages students to learn, contribute and collaborat
 
 ## Some of our previous events
 
+- [HackWeek](https://cosc-hackweek.vercel.app/)
 - Git & GitHub Workshop 
 - [OpenSys'25](https://opensys2025.vercel.app/)
 - GSOC Awareness Session 2025

img/events/HackWeek-2025.png

@@ -148,7 +148,7 @@ <h2 class="title__heading">Why Open Source?</h2>
                     </p>
                 </div>
             </section>
-
+            <!--
             <section class="section section-upcoming">
                 <div class="section__content">
                     <h2 class="section__header">Upcoming Events</h2><br>
@@ -166,13 +166,32 @@ <h2 class="section__header">Upcoming Events</h2><br>
                     </div>
                 </div>
             </section>
-
+            -->
             <section id="events" class="section section-past section--dark">
                 <div class="section__content">
                     <h2 class="section__header">Past Events</h2>
 
                     <h3 id="events-2023" class="timeline-marker">2025</h3>
                     <div class="cards">
+                        <div class="event card">
+                            <img
+                                class="card__image"
+                                src="./img/events/HackWeek-2025.png"
+                                loading="lazy"
+                                style="height: 292.04px; width: 389px"
+                            />
+                            <div class="card__info">
+                                <p>
+                                    <a
+                                        href="https://cosc-hackweek.vercel.app/"
+                                        target="_blank"
+                                        rel="noopener"
+                                        >HackWeek</a
+                                    >
+                                </p>
+                                <p>22 - 28 June 2025</p>
+                            </div>
+                        </div>
                         <div class="event card">
                             <img
                                 class="card__image"
@@ -751,22 +770,8 @@ <h2 class="title__heading">Reference Material</h2>
                         class="button-link"
                         target="_blank"
                         rel="nofollow noopener"
-                        href="https://github.com/cbitosc/WebFundamentals"
-                        >WebSession</a
-                    >
-                    <a
-                        class="button-link"
-                        target="_blank"
-                        rel="nofollow noopener"
-                        href="https://github.com/cbitosc/python-for-beginners"
-                        >Python for Beginners</a
-                    >
-                    <a
-                        class="button-link"
-                        target="_blank"
-                        rel="nofollow noopener"
-                        href="https://github.com/cbitosc/djangocampv2"
-                        >DjangoCampV2</a
+                        href=" https://github.com/cbitosc/resources"
+                        >References</a
                     >
                 </div>
             </section>