style: Apply dprint formatting to existing files

Auto-format markdown tables, backtick usage, and blank lines
after headings in frontmatter templates.

Author: icarthick

.github/ISSUE_TEMPLATE/rfc---request-for-comments.md

@@ -4,23 +4,28 @@ about: Propose a new feature, artifact, or major update
 title: 'RFC: <your proposal title>'
 labels: needs-triage, rfc-proposal
 assignees: ayn-builds
-
 ---
 
 ## Summary
+
 <!-- One paragraph describing the proposal -->
 
 ## Motivation
+
 <!-- Why is this needed? What problem does it solve? -->
 
 ## Proposed Solution
+
 <!-- Describe your approach in detail -->
 
 ## Alternatives Considered
+
 <!-- What other approaches did you evaluate and why were they rejected? -->
 
 ## Open Questions
+
 <!-- What is still undecided or needs community input? -->
 
 ## Drawbacks
+
 <!-- Any known trade-offs or risks? -->

.github/pull_request_template.md

@@ -13,6 +13,7 @@
 ## Team Folder
 
 <!-- Which top-level folder does this PR affect? -->
+
 - [ ] `migrate/`
 - [ ] Other: ___
 

CONTRIBUTING.md

@@ -1,6 +1,6 @@
 # Contributing Guidelines
 
-Thank you for your interest in contributing to ``awslabs/startups``.
+Thank you for your interest in contributing to `awslabs/startups`.
 
 ## RFCs for New Features, Artifacts, and Major Changes
 

README.md

@@ -9,7 +9,7 @@ This repository hosts plugins, MCPs, and tools built by the AWS Startups team, d
 ## Tools
 
 | Tool | Description | Status |
-|------|-------------|--------|
+| ---- | ----------- | ------ |
 
 ...to be continued