Fix audience and support references

- Change 'Undergraduate' to 'Graduate students' (ENTM201L is grad course)
- Remove all 'TA' references (no TA, only instructor)
- Consistent: 'Ask your instructor' throughout

Changes:
- README.md: Graduate students, no TA
- assignment.md: Remove TA reference
- start_here.md: Remove TA reference

Author: cosmelab

README.md

@@ -23,7 +23,7 @@ A complete automated workflow for analyzing Sanger sequencing chromatograms (.ab
 ```
 Institution       University of California, Riverside
 Course            ENTM201L - Molecular Biology Laboratory
-Target Users      Undergraduate students (no coding required)
+Target Users      Graduate students (no coding required)
 Analysis Time     ~5 minutes (fully automated)
 Instructor        Luciano Cosme, Department of Entomology
 ```
@@ -378,7 +378,7 @@ docker run hello-world
 1. **Read [start_here.md](start_here.md)** — Complete beginner's guide
 2. **Check [docs/pipeline_workflow.md](docs/pipeline_workflow.md)** — Visual workflow
 3. **Read [docs/iqtree_guide.md](docs/iqtree_guide.md)** — Understanding trees
-4. **Ask your TA or instructor** — Office hours available
+4. **Ask your instructor** — Office hours available
 
 ---
 

assignment.md

@@ -299,7 +299,7 @@ git push origin main
 2. **Read the visual workflow**: `docs/pipeline_workflow.md`
 3. **Understand IQ-TREE**: `docs/iqtree_guide.md`
 4. **Check your work**: Compare your results to the tutorial results
-5. **Ask your TA or instructor**
+5. **Ask your instructor**
 
 ---
 

start_here.md

@@ -154,4 +154,4 @@ git push origin main       # STEP 4: Submit (auto-graded!)
 **Need help?**
 - Re-run tutorial: `./tutorial.sh`
 - Read: `docs/pipeline_workflow.md`
-- Ask your TA
+- Ask your instructor