Added details about first time speakers' workshop (#1128)

Added date, time and link to sign up for first time speakers' workshop

Author: 7ashiorkor7

src/content/pages/programme/mentorship.mdx

@@ -60,9 +60,13 @@ to submit your application in the form below to become a mentee.
 ### Online Event: First Time Speaker’s Workshop
 After the CfP, we will host an online panel session with 2–3 experienced community members sharing advice for first-time and returning speakers. At the end of the panel, there will be a QnA session to answer all the participants' questions.
 
-**Date**: TBD
+**Date**: Wednesday 4th June 2025
 
-**Time**: 60-90 mins (depending on the amount of questions)
+**Time**: 6 PM CEST (60-90 mins, depending on the amount of questions)
+
+<div class="text-center">
+<ButtonLink url="https://forms.gle/T8rc73sbyu3KbLNKA"> Sign Up Now </ButtonLink>
+</div>
 
 You can watch the recording of the previous year's workshop here: