Update my role on the website

While technically 'tech lead' has been my official role for a long
time, I believe I've actually only 'lived' it for the last 6-9 months.
Now I feel comfortable actually putting that on the website.

content/authors/yuvi-panda/_index.md

@@ -9,7 +9,7 @@ authors:
 # Is this the primary user of the site?
 superuser: true
 
-role: Senior Open Source Infrastructure Engineer
+role: Tech Lead and Co-Founder
 
 # Organizations/Affiliations
 organizations: []