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+# Azure DevOps Markdown Guidance
+
+This reference describes Markdown syntax supported by Azure DevOps features including Wiki pages, README files, dashboards, and pull requests.
+
+## Supported Features
+
+| Markdown type | Definition of Done | Widget | Pull Requests | README | Wiki |
+|---|---|---|---|---|---|
+| Headings | Yes | Yes | Yes | Yes | Yes |
+| Paragraphs/line breaks | Yes | Yes | Yes | Yes | Yes |
+| Blockquotes | Yes | Yes | Yes | Yes | Yes |
+| Horizontal rules | Yes | Yes | Yes | Yes | Yes |
+| Emphasis (bold, italic) | Yes | Yes | Yes | Yes | Yes |
+| Tables | No | Yes | Yes | Yes | Yes |
+| Lists (ordered, unordered) | Yes | Yes | Yes | Yes | Yes |
+| Links | Yes | Yes | Yes | Yes | Yes |
+| Images | No | Yes | Yes | Yes | Yes |
+| Code highlighting | No | Yes | Yes | Yes | Yes |
+| Math notation | No | No | Yes | Yes | Yes |
+| Checklists/task lists | No | No | Yes | Yes | Yes |
+| Mermaid diagrams | No | No | No | No | Yes |
+
+> **Note:** Markdown in Azure DevOps doesn't support JavaScript or iframes.
+
+## Headings
+
+```markdown
+# Heading 1
+## Heading 2
+### Heading 3
+#### Heading 4
+##### Heading 5
+###### Heading 6
+```
+
+## Paragraphs and Line Breaks
+
+Use a blank line for new paragraphs. Use two spaces at line end or `
` for line breaks within a paragraph.
+
+## Blockquotes
+
+```markdown
+> Single blockquote
+>> Nested blockquote
+```
+
+## Horizontal Rules
+
+Use three or more hyphens, asterisks, or underscores on a line by themselves.
+
+## Emphasis
+
+```markdown
+*Italic* or _Italic_
+**Bold** or __Bold__
+***Bold italic***
+~~Strikethrough~~
+```
+
+## Code Highlighting
+
+**Inline:** Use single backticks `` `code` ``
+
+**Block:** Use triple backticks with optional language identifier:
+
+````markdown
+```javascript
+const x = 1;
+```
+````
+
+Supported languages include: ActionScript, Apex, Bash, C, C#, C++, CSS, Dart, Go, Groovy, Haskell, HTML, Java, JavaScript, JSON, Kotlin, Lua, Markdown, Objective-C, Perl, PHP, PowerShell, Python, R, Ruby, Rust, Scala, Shell, SQL, Swift, TypeScript, XML, YAML, and more.
+
+## Tables
+
+```markdown
+| Header 1 | Header 2 |
+|----------|----------|
+| Cell 1 | Cell 2 |
+```
+
+Alignment with colons: `:---` (left), `:---:` (center), `---:` (right).
+
+## Lists
+
+**Ordered:**
+
+```markdown
+1. First item
+2. Second item
+```
+
+**Unordered:**
+
+```markdown
+- Item 1
+- Item 2
+```
+
+**Nested:** Indent with spaces.
+
+## Links
+
+```markdown
+[Link text](URL)
+[Link text](URL "Title")
+```
+
+**Anchor links:** Link to headings within the same page using `#section-name`.
+
+## Images
+
+```markdown
+
+
+```
+
+Azure DevOps supports image resizing with `=WIDTHxHEIGHT` syntax.
+
+## Checklists / Task Lists
+
+```markdown
+- [ ] Incomplete task
+- [x] Completed task
+```
+
+## Mathematical Notation
+
+**Inline:** `$` delimiters: `$e^{i\pi} = -1$`
+
+**Block:** `$$` delimiters:
+
+```markdown
+$$
+\sum_{i=1}^{n} x_i
+$$
+```
+
+Uses KaTeX for rendering.
+
+## Mermaid Diagrams (Wiki only)
+
+````markdown
+```mermaid
+graph TD;
+ A-->B;
+ B-->C;
+```
+````
+
+Supports: flowcharts, sequence diagrams, Gantt charts, and more.
+
+## Collapsible Sections
+
+```html
+
+ Click to expand
+
+ Content here (leave blank line after summary tag).
+
+```
+
+## Emoji
+
+Use standard emoji shortcodes: `:smile:`, `:thumbsup:`, etc.
+
+## Special Characters
+
+Escape special Markdown characters with backslash: `\*`, `\#`, `\[`, etc.
+
+## HTML Tags
+
+Supported HTML tags in Wiki include: `
`, `
`, `
`, `
`, ``, ``, `| `, ` | `, ``, ``, ``, ``, ``, ``, ``, `- `, `
`-``, ` `, ``, ``, ``, ``, ` |