DOC-5831 added initial version of tool to convert example files to notebooks

Author: andy-stark-redis

build/jupyterize/QUICKSTART.md

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+# Jupyterize - Quick Start Guide
+
+## Installation
+
+```bash
+pip install nbformat
+```
+
+## Basic Usage
+
+```bash
+# Convert a file (creates example.ipynb)
+python build/jupyterize/jupyterize.py example.py
+
+# Specify output location
+python build/jupyterize/jupyterize.py example.py -o notebooks/example.ipynb
+
+# Enable verbose logging
+python build/jupyterize/jupyterize.py example.py -v
+```
+
+## What It Does
+
+Converts code example files → Jupyter notebooks (`.ipynb`)
+
+**Automatic:**
+- ✅ Detects language from file extension
+- ✅ Selects appropriate Jupyter kernel
+- ✅ Excludes `EXAMPLE:` and `BINDER_ID` markers
+- ✅ Includes code in `HIDE_START`/`HIDE_END` blocks
+- ✅ Excludes code in `REMOVE_START`/`REMOVE_END` blocks
+- ✅ Creates separate cells for each `STEP_START`/`STEP_END` block
+
+## Supported Languages
+
+| Extension | Language   | Kernel       |
+|-----------|------------|--------------|
+| `.py`     | Python     | python3      |
+| `.js`     | JavaScript | javascript   |
+| `.go`     | Go         | gophernotes  |
+| `.cs`     | C#         | csharp       |
+| `.java`   | Java       | java         |
+| `.php`    | PHP        | php          |
+| `.rs`     | Rust       | rust         |
+
+## Input File Format
+
+```python
+# EXAMPLE: example_id
+# BINDER_ID optional-binder-id
+import redis
+
+# STEP_START connect
+r = redis.Redis()
+# STEP_END
+
+# STEP_START set_get
+r.set('foo', 'bar')
+r.get('foo')
+# STEP_END
+```
+
+## Output Structure
+
+Creates a Jupyter notebook with:
+- **Preamble cell** - Code before first `STEP_START`
+- **Step cells** - Each `STEP_START`/`STEP_END` block
+- **Kernel metadata** - Automatically set based on language
+- **Step metadata** - Step names stored in cell metadata
+
+## Common Issues
+
+**"Unsupported file extension"**
+→ Use a supported extension (.py, .js, .go, .cs, .java, .php, .rs)
+
+**"File must start with EXAMPLE: marker"**
+→ Add `# EXAMPLE: <id>` (or `//` for JS/Go/etc.) as first line
+
+**"Input file not found"**
+→ Check file path is correct
+
+## Testing
+
+```bash
+# Run automated tests
+python build/jupyterize/test_jupyterize.py
+```
+
+## More Information
+
+- **User Guide**: `build/jupyterize/README.md`
+- **Technical Spec**: `build/jupyterize/SPECIFICATION.md`
+- **Implementation**: `build/jupyterize/IMPLEMENTATION.md`
+