feat:add Online Notepad—Markdown Viewer

_tools/online-notepad.md

@@ -0,0 +1,73 @@
+---
+title: Online Notepad——Markdown Viewer
+category: "documents"
+description: "Markdown Viewer——Free Online Markdown Editor"
+icon: online-notepad.png
+website: https://onlinenotepad101.org/markdown-editor
+syntax:
+  - id: headings
+    available: y
+  - id: paragraphs
+    available: y
+  - id: line-breaks
+    available: y
+  - id: bold
+    available: y
+  - id: italic
+    available: y
+  - id: blockquotes
+    available: y
+  - id: ordered-lists
+    available: y
+  - id: unordered-lists
+    available: y
+  - id: code
+    available: y
+  - id: horizontal-rules
+    available: y
+  - id: links
+    available: y
+  - id: images
+    available: y
+  - id: tables
+    available: y
+  - id: fenced-code-blocks
+    available: y
+  - id: syntax-highlighting
+    available: y
+  - id: footnotes
+    available: n
+  - id: heading-ids
+    available: n
+  - id: definition-lists
+    available: n
+  - id: strikethrough
+    available: y
+  - id: task-lists
+    available: y
+  - id: emoji-cp
+    available: y
+  - id: emoji-sc
+    available: n
+  - id: highlight
+    available: n
+  - id: subscript
+    available: n
+  - id: superscript
+    available: n
+  - id: auto-url-linking
+    available: y
+  - id: disabling-auto-url
+    available: y
+  - id: html
+    available: y
+---
+
+[Online Notepad](https://onlinenotepad101.org) is Online Notepad – Free Online Text Editor & Notes Sharing and it support
+[Markdown Viewer](https://onlinenotepad101.org/markdown-editor), it is a free online markdown viewer provides a distraction-free space to write markdown and use the markdown preview for real-time formatting.No login required!
+
+{% include image.html file="/assets/images/tools/online-notepad.png" alt="Online Notepad" %}
+
+{% include image.html file="/assets/images/tools/markdown-viewer.png" alt="Markdown Viewer" %}
+
+{% include tool-syntax-table.html %}