Add July 2026 meetup announcement and update challenges for July Scarf Seams challenge

wiki-content-gitea/Important-Dates.md

@@ -6,14 +6,14 @@
 
 ### Next Meetup
 
-- **May Meetup: May 20th, 2026**
-  - Judging of May 2026 Challenge ("Bring an Experiment (Round 2!)")
-  - Challenge announcement for June 2026 Challenge ("[Theme TBD]")
+- **June Meetup: June 17th, 2026** ✓ *Completed*
+  - Judging of June 2026 Challenge ("Show & Tell Extravaganza!")
+  - Challenge announcement for July 2026 Challenge ("Scarf Seams")
 
-- **June Meetup: June 17th, 2026**
-  - Judging of June 2026 Challenge ("[Theme TBD]")
-  - Challenge announcement for July 2026 Challenge ("[Theme TBD]")
-  - Special Topic and activities TBD
+- **July Meetup: July 15th, 2026**
+  - Judging of July 2026 Challenge ("Scarf Seams")
+  - Challenge announcement for August 2026 Challenge ("[Theme TBD]")
+  - Focus on dialing in Scarf Seam settings and techniques
 
 ## Regular Meeting Schedule
 
@@ -39,17 +39,25 @@
 
 See [Current Challenge](Current-Challenge) for complete details.
 
-### June 2026: "[Theme TBD]"
+### June 2026: "Show & Tell Extravaganza!"
 
-- **Challenge Announcement**: May 20, 2026
+- **Challenge Announcement**: June 10, 2026
 - **Submission Deadline**: June 17, 2026
 - **Judging**: June 17, 2026 meetup
 
-See [Upcoming Challenge](Upcoming-Challenge) for updates.
+See [Challenge Archive](Challenge-Archive) for complete details.
+
+### July 2026: "Scarf Seams"
+
+- **Challenge Announcement**: June 17, 2026
+- **Submission Deadline**: July 15, 2026
+- **Judging**: July 15, 2026 meetup
+
+See [Current Challenge](Current-Challenge) for updates.
 
 ## Meeting Locations
 
-**June 2026 Meetup:**
+**July 2026 Meetup:**
 West Fargo Public Library
 215 Third St. E.
 West Fargo, ND 58078