Fix broken API cheat sheet table in demo page

Replace markdown table with individual code blocks to avoid rendering
issues caused by long curl commands with quotes and special characters.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: inutano

views/demo.markdown

@@ -307,19 +307,73 @@ The agent would synthesize all results into a summary of available data, relevan
 
 ## 8. HTTP API Cheat Sheet
 
-| Task | Method | Command |
-|------|--------|---------|
-| List genomes | GET | `curl https://chip-atlas.org/data/list_of_genome.json` |
-| List experiment types | GET | `curl https://chip-atlas.org/data/list_of_experiment_types.json` |
-| Experiment types with counts | GET | `curl "https://chip-atlas.org/data/experiment_types?genome=hg38&clClass=Blood"` |
-| Sample types with counts | GET | `curl "https://chip-atlas.org/data/sample_types?genome=hg38&agClass=Histone"` |
-| List antigens | GET | `curl "https://chip-atlas.org/data/chip_antigen?genome=hg38&agClass=Histone&clClass=Blood"` |
-| List cell types | GET | `curl "https://chip-atlas.org/data/cell_type?genome=hg38&agClass=Histone&clClass=Blood"` |
-| Search experiments | GET | `curl "https://chip-atlas.org/data/search_experiments?query=CTCF&limit=5"` |
-| Experiment metadata | GET | `curl "https://chip-atlas.org/data/exp_metadata.json?expid=SRX018625"` |
-| Colocalization index | GET | `curl "https://chip-atlas.org/data/colo_analysis.json?genome=hg38"` |
-| Target genes index | GET | `curl https://chip-atlas.org/data/target_genes_analysis.json` |
-| Download BED URL | POST | `curl -X POST https://chip-atlas.org/download -H "Content-Type: application/json" -d '{"condition": {"genome": "hg38", "agClass": "Histone"}}'` |
+**List genomes** — GET
+
+```bash
+curl https://chip-atlas.org/data/list_of_genome.json
+```
+
+**List experiment types** — GET
+
+```bash
+curl https://chip-atlas.org/data/list_of_experiment_types.json
+```
+
+**Experiment types with counts** — GET
+
+```bash
+curl "https://chip-atlas.org/data/experiment_types?genome=hg38&clClass=Blood"
+```
+
+**Sample types with counts** — GET
+
+```bash
+curl "https://chip-atlas.org/data/sample_types?genome=hg38&agClass=Histone"
+```
+
+**List antigens** — GET
+
+```bash
+curl "https://chip-atlas.org/data/chip_antigen?genome=hg38&agClass=Histone&clClass=Blood"
+```
+
+**List cell types** — GET
+
+```bash
+curl "https://chip-atlas.org/data/cell_type?genome=hg38&agClass=Histone&clClass=Blood"
+```
+
+**Search experiments** — GET
+
+```bash
+curl "https://chip-atlas.org/data/search_experiments?query=CTCF&limit=5"
+```
+
+**Experiment metadata** — GET
+
+```bash
+curl "https://chip-atlas.org/data/exp_metadata.json?expid=SRX018625"
+```
+
+**Colocalization index** — GET
+
+```bash
+curl "https://chip-atlas.org/data/colo_analysis.json?genome=hg38"
+```
+
+**Target genes index** — GET
+
+```bash
+curl https://chip-atlas.org/data/target_genes_analysis.json
+```
+
+**Download BED URL** — POST
+
+```bash
+curl -X POST https://chip-atlas.org/download \
+  -H "Content-Type: application/json" \
+  -d '{"condition": {"genome": "hg38", "agClass": "Histone"}}'
+```
 
 ---