Clean up release highlights copy and removing emdash from the docs (#5984)

docs/templates/cookbook_template.mdx

@@ -10,24 +10,24 @@ Cookbooks are narrative tutorials. They start with a real problem, show the brok
 
 ---
 
-## ❌ DO NOT COPY — Guidance & Constraints
+## ❌ DO NOT COPY: Guidance & Constraints
 - Tell a story: problem → broken demo → iterative fixes → production patterns.
 - Keep tone conversational; use real names ("Max", "Sarah"), not `user_123`.
 - Opening must stay tight: ≤2 short paragraphs (no bullet lists) before the first section.
 - Inline expected outputs immediately after each code block.
-- When modernizing an existing cookbook, keep the narrative beats, screenshots, and sample outputs—reshape them into this arc instead of rewriting unless the workflow changed.
+- When modernizing an existing cookbook, keep the narrative beats, screenshots, and sample outputs. Reshape them into this arc instead of rewriting unless the workflow changed.
 - Limit callouts to 3–5 per page. Prefer narrative text over stacked boxes.
 - Always provide Python **and** TypeScript tabs when an SDK exists for both.
 - Every page must end with exactly two navigation cards (left = related/side quest, right = next cookbook in the journey).
 
 ---
 
-## ✅ COPY THIS — Content Skeleton
+## ✅ COPY THIS: Content Skeleton
 Paste the block below into a new cookbook, then replace all placeholders. Remove any section you don't need **only after** the happy path works.
 
 ```mdx
 ---
-title: [Cookbook title — action oriented]
+title: [Cookbook title: action oriented]
 description: [1 sentence outcome]
 ---
 
@@ -132,14 +132,14 @@ Call out the most common mistake or edge case for this layer.
 
 ## Production Patterns
 
-- **[Pattern 1]** — `[When to use it]`
+- **[Pattern 1]**: `[When to use it]`
   ```python
   # Example snippet
   ```
   ```typescript
   // Example snippet
   ```
-- **[Pattern 2]** — `[When to use it]`
+- **[Pattern 2]**: `[When to use it]`
   ```python
   # Example snippet
   ```
@@ -149,9 +149,9 @@ Call out the most common mistake or edge case for this layer.
 
 ## What You Built
 
-- **[Capability 1]** — [How the cookbook delivers it]
-- **[Capability 2]** — [How the cookbook delivers it]
-- **[Capability 3]** — [How the cookbook delivers it]
+- **[Capability 1]**: [How the cookbook delivers it]
+- **[Capability 2]**: [How the cookbook delivers it]
+- **[Capability 3]**: [How the cookbook delivers it]
 
 ## Production Checklist