docs: add the tsci export

docs/command-line/tsci-export.md

@@ -2,8 +2,72 @@
 title: tsci export
 ---
 
+import ImageWithCaption from "../../src/components/ImageWithCaption"
+
 ## Overview
 
 `tsci export` can be used to convert a `tsx` file or `circuit.json` file into
-schematic PDFs, fabrication files, gerbers, pick'n'place files, netlists and
-many more formats.
+various output formats including schematics, PCB layouts, fabrication files, and more.
+
+<ImageWithCaption
+  src="/img/tsci-dev-export.png"
+  alt="Export options in the web interface"
+  caption="Export options available in the web interface after running tsci dev"
+/>
+
+## Usage
+
+```bash
+tsci export <file> [options]
+```
+
+### Arguments
+- `<file>`: Path to the source file (`.tsx` or `.circuit.json`)
+
+### Options
+- `-f, --format <format>`: Output format (defaults to "json")
+- `-o, --output <path>`: Custom output file path
+
+## Supported Formats
+
+The following export formats are supported:
+
+| Format | Description |
+|--------|-------------|
+| `circuit-json`| Circuit JSON format |
+| `schematic-svg` | Schematic view as SVG |
+| `pcb-svg` | PCB layout as SVG |
+| `readable-netlist` | Human-readable netlist |
+| `specctra-dsn` | Specctra DSN format for autorouting |
+
+## Examples
+
+Export to circuit JSON:
+```bash
+tsci export circuit.tsx
+```
+
+Export as schematic SVG:
+```bash
+tsci export circuit.tsx -f schematic-svg
+```
+
+Export PCB layout with custom output path:
+```bash
+tsci export circuit.tsx -f pcb-svg -o my-pcb-layout.svg
+```
+
+Export to Specctra DSN format:
+```bash
+tsci export circuit.tsx -f specctra-dsn
+```
+
+## Output Files
+
+By default, the exported file will be saved in the same directory as the input file, with a filename based on the input filename and the chosen format. For example:
+
+- Input: `my-circuit.tsx`
+- Format: `pcb-svg`
+- Default output: `my-circuit-pcb.svg`
+
+You can override the output location using the `-o` or `--output` option.