Update Codespaces: fix script names and simplify instructions

Author: cosmelab

.devcontainer/devcontainer.json

@@ -37,9 +37,9 @@
     }
   },
 
-  "postCreateCommand": "echo '🧬 DNA Barcoding container ready! Run ./tutorial.sh to get started.'",
+  "postCreateCommand": "echo '🧬 DNA Barcoding container ready! Run ./tutorial-cs.sh to get started.'",
 
-  "postStartCommand": "echo '\n=== GitHub Codespaces Quick Start ===\n1. Run: ./tutorial.sh (to learn with test data)\n2. Run: ./run-analysis.sh (to analyze class sequences)\n3. View HTML reports:\n   - Right-click any .html file in results/ → Open with Live Server\n   - Or run: python -m http.server 8000 -d results/\n   - Then open forwarded port 8000 in browser\n4. Answer questions: python3 answer_assignment.py\n5. Submit: git add . && git commit -m \"Complete assignment\" && git push\n'",
+  "postStartCommand": "echo '\n=== GitHub Codespaces Quick Start ===\n1. Run: ./tutorial-cs.sh\n2. Run: ./run-analysis-cs.sh\n3. View HTML reports: Right-click .html file → Open with Live Server\n4. Answer questions: python3 answer_assignment.py\n5. Submit: git add . && git commit -m \"Complete\" && git push\n\nTip: Type zsh for a colorful terminal!\n'",
 
   "remoteUser": "root",
 

README.md

@@ -73,6 +73,14 @@ See **[start_here.md](start_here.md)** for the complete beginner's guide.
 
 **Once Codespaces opens**, run these commands in the terminal:
 
+> **Tip: Nice Terminal** — Type `zsh` for a colorful terminal with the Dracula theme!
+
+> **Viewing HTML Reports** — In the Explorer panel, right-click any `.html` file:
+> - **"Open with Live Server"** → Opens in a new browser tab (recommended)
+> - **"Download"** → Save to your computer and open locally
+>
+> All reports are standalone files with embedded CSS, so downloading works fine.
+
 ```bash
 # STEP 1: Learn with test data (5 min)
 ./tutorial-cs.sh
@@ -101,6 +109,12 @@ python3 check_progress.py
 
 **Requirements:** Docker Desktop must be running!
 
+> **Tip: Nice Terminal** — Want to explore inside the container? Run:
+> ```bash
+> docker run --rm -it -v $(pwd):/workspace -w /workspace cosmelab/dna-barcoding-analysis:latest zsh
+> ```
+> This gives you a colorful Dracula-themed terminal with the analysis tools.
+
 ```bash
 # STEP 1: Learn with test data (5 min)
 ./tutorial.sh