diff --git a/README.md b/README.md
index a98633db53593259760e584903f0eb91c43e65d9..eb912cf9c380ccb273fcd0b21c5848ab98561eef 100644
--- a/README.md
+++ b/README.md
@@ -15,16 +15,16 @@
 - prior, new introductions
 - prototyping results, trials, investigations
     - PPE
+        - testing
+            - https://gitlab.cba.mit.edu/pub/coronavirus/tracking/-/blob/master/README.md
         - shields
             - https://gitlab.cba.mit.edu/alfonso/covid19-fast-kirishield
         - helmets
             - https://gitlab.cba.mit.edu/pub/coronavirus/pph-ppe
-        - masks
-            - https://gitlab.cba.mit.edu/pub/coronavirus/the-maski/-/blob/master/README.md
-        - testing
-            - https://gitlab.cba.mit.edu/pub/coronavirus/tracking/-/blob/master/README.md
         - filter media
             - https://tourlomousis.pages.cba.mit.edu/cvd-electrospinning/
+        - masks
+            - https://gitlab.cba.mit.edu/pub/coronavirus/the-maski/-/blob/master/README.md
 - urgent needs
 - topics go here