Update _toc.yml

Author: rcpeene

docs/_toc.yml

@@ -42,6 +42,9 @@ parts:
   - file: projects/glo.ipynb
   - file: projects/illusion.ipynb
   - file: projects/dendritic_coupling.ipynb
+  - file: projects/sequence_learning.ipynb
+  - file: projects/barcoding.ipynb
+  - file: projects/vippo.ipynb
 - caption: Embargoed Datasets
   chapters:
   - file: embargoed/modality_alignment.ipynb
@@ -58,4 +61,4 @@ parts:
   - file: contribution.md
   - file: bibliography.md
   - file: authors_index.md
-  - file: FAQ.md
+  - file: FAQ.md