Merge pull request #233 from NYU-RTS/mdweisner-singularity-overlay-1

Update 03_singularity_with_conda.md

Author: mdweisner

docs/hpc/07_containers/03_singularity_with_conda.md

@@ -1,4 +1,25 @@
 # Singularity with Conda
+Please note that Greene and Torch organize overlay files and Singularity images in different directories. 
+
+## Greene Directories
+Overlay Files:
+```
+/scratch/work/public/overlay-fs-ext3/
+```
+Singularity Files:
+```
+/scratch/work/public/singularity/
+```
+
+## Torch Directories
+Overlay Files:
+```
+/share/apps/overlay-fs-ext3
+```
+Singularity Files:
+```
+/share/apps/images/
+```
 
 ## Using Singularity Overlays for Miniforge (Python & Julia)
 ### Preinstallation Warning