nb: add page (#19145)

pages/common/nb.md

@@ -0,0 +1,37 @@
+# nb
+
+> Note-taking, bookmarking, and archiving tool.
+> Supports encryption, tagging, wiki-style links, Git syncing, Pandoc conversion, and more.
+> More information: <https://github.com/xwmx/nb#-help>.
+
+- Create a new note in your `$EDITOR`:
+
+`nb {{[a|add]}} "{{note_title}}"`
+
+- Edit a note in your `$EDITOR`:
+
+`nb {{[e|edit]}} {{note_id}}`
+
+- List all notes in the current notebook:
+
+`nb list`
+
+- Add a todo:
+
+`nb {{[to|todos]}} {{[a|add]}} {{title}}`
+
+- Import a file:
+
+`nb import ({{path/to/file|url}})`
+
+- Search for notes containing a keyword:
+
+`nb {{[q|search]}} "{{keyword}}"`
+
+- Sync notes via Git:
+
+`nb sync`
+
+- Display help:
+
+`nb help`