Add Django (marketing) sprint option (#1831)

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Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

Author: thibaudcolas

src/content/sprints/django-marketing.md

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+---
+title: "Django (marketing)"
+numberOfPeople: "15" # How many people you expect to be able to accommodate.
+pythonLevel: "Any" # Any, Beginner, Intermediate, or Advanced.
+contactPerson: # The main person to reach out to regarding the sprint.
+  name: "Thibaud Colas"
+  email: "thibaudcolas@gmail.com"
+  github: "thibaudcolas"
+  twitter: "thibaud_colas"
+links: # Add as many links as relevant.
+  - title: "It's time to redesign djangoproject.com"
+    url: "https://www.djangoproject.com/weblog/2026/apr/27/its-time-to-redesign-djangoprojectcom/"
+---
+
+We need your help on Saturday to refresh
+[Django](https://www.djangoproject.com/)’s marketing! We want to build a new
+website for the project. We’re working on a new marketing strategy to kickstart
+this work. We need help from newcomers bringing their fresh perspective. And
+seasoned Djangonauts. People who are new to marketing, or experienced. You can
+contribute with:
+
+- Feedback on Django’s current marketing and website, ideas and brainstorming on
+  what to do differently
+- Collaborative research for specific aspects of our marketing strategy
+- Curiosity, enthusiasm, ideas, criticisms
+- Laptop or smartphone or paper and pen
+
+Planning doc:
+[Sprint on Django (marketing) @ EuroPython 2026](https://bit.ly/django-ep2026)
+
+Resources that will help:
+[Website redesign](https://github.com/django/djangoproject.com/issues/2287),
+[GitLab marketing handbook](https://handbook.gitlab.com/handbook/marketing/),
+[Wagtail product strategy](https://wagtail.org/product-strategy),
+[Drupal product strategy](https://www.drupal.org/about/initiatives/cms/blog/drupal-cms-product-strategy-version-20),
+[WordPress marketing handbook](https://make.wordpress.org/marketing/handbook/),
+[Marketing open source projects](https://todogroup.org/resources/guides/marketing-open-source-projects/)
+
+If you want to chat about / work on other things than marketing, come say hi! We
+will focus on the one theme but would love to hear what others are up to.