Add sprint details for BeeWare (#1424)

The BeeWare project will be sprinting in Prague; here's some updated
details for the sprint page.

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

Author: freakboy3742

src/content/sprints/beeware.md

@@ -1,13 +1,21 @@
 ---
 title: "BeeWare"
-numberOfPeople: "TBA"
+numberOfPeople: "10-15"
 pythonLevel: "Beginner"
 contactPerson:
   name: "Russell Keith-Magee"
-  email:
+  email: [email protected]
 links:
-  - title: "BeeWare GitHub"
+  - title: "Project Website"
+    url: "https://beeware.org"
+  - title: "Contribution guide"
+    url: "https://beeware.org/contributing/"
+  - title: "GitHub"
     url: "https://github.com/beeware"
 ---
 
-Come sprint on the BeeWare project!
+Ever wanted to write an app for your phone using nothing but Python? Ever wanted
+to package your Python project so you can give it to someone else who knows
+nothing about Python? You can - with BeeWare! We welcome new contributors; no
+matter your level of experience, we can find a way for you to contribute. And
+every new contributor earns a challenge coin!