Update GitHub handles

Author: SylvainCorlay

about.html

@@ -19,48 +19,48 @@
 distinguished_2021:
   - name: Mehmet Bektas
     photo: Mehmet_Bektas.jpg
-    twitter_handle: https://twitter.com/mbektash
-    gh_handle: https://github.com/mbektas
+    twitter_handle: mbektash
+    gh_handle: mbektas
     linkedin: https://www.linkedin.com/in/mehmet-bektas/
   - name: David Brochart
     photo: David_Brochart.jpg
-    twitter_handle: https://twitter.com/davidbrochart
-    gh_handle: https://github.com/davidbrochart
+    twitter_handle: davidbrochart
+    gh_handle: davidbrochart
     linkedin: https://www.linkedin.com/in/david-brochart-4208721/
   - name: Chris Colbert
     photo: Chris_Colbert.jpg
-    gh_handle: https://github.com/sccolbert
+    gh_handle: sccolbert
     linkedin: https://www.linkedin.com/in/chris-colbert-89699b7/
   - name: Frédéric Collonval
     photo: Frederic_Collonval.jpg
-    gh_handle: https://github.com/fcollonval
+    gh_handle: fcollonval
     linkedin: https://www.linkedin.com/in/frederic-collonval-41147955/
   - name: Martha Cryan
     photo: Martha_Cryan.jpg
-    gh_handle: http://github.com/marthacryan
+    gh_handle: marthacryan
   - name: Wayne Decatur
     photo: Wayne_Decatur.jpg
-    twitter_handle: https://twitter.com/Fomightez
-    gh_handle: https://github.com/fomightez
+    twitter_handle: Fomightez
+    gh_handle: fomightez
   - name: Sarah Gibson
     photo: Sarah_Gibson.jpg
-    twitter_handle: https://twitter.com/drsarahlgibson
-    gh_handle: https://github.com/sgibson91
+    twitter_handle: drsarahlgibson
+    gh_handle: sgibson91
     linkedin: https://www.linkedin.com/in/drsarahlgibson/
     personal: https://sgibson91.github.io/
   - name: Mariana Meireles
     photo: Mariana_Meireles.jpg
-    twitter_handle: https://twitter.com/mari_meir
-    gh_handle: https://github.com/marimeireles/
+    twitter_handle: mari_meir
+    gh_handle: marimeireles
     linkedin: https://www.linkedin.com/in/mariana-meireles/
   - name: Isabela Presedo-Floyd
     photo: Isabela_Presedo-Floyd.jpg
-    gh_handle: https://github.com/isabela-pf
+    gh_handle: isabela-pf
+    twitter_handle: isabelapf2
     linkedin: https://www.linkedin.com/in/isabela-presedo-floyd-32b99a160/
-    twitter_handle: https://twitter.com/isabelapf2
   - name: Nicolas Thiéry
     photo: Nicolas_Thiery.jpg
-    gh_handle: https://github.com/nthiery
+    gh_handle: nthiery
 
 distinguished_2020:
   - name: Maarten Breddels