Merge pull request #515 from er1c/fix-links

Update broken testimonial links

Author: sjrd

_data/testimonials.yml

@@ -2,23 +2,22 @@
     Scala libraries get ported over to Scala.js, I believe this is just the start.
   author: Binh Nguyen
   position: Director of Engineering / Anduin Transactions, Inc.
-  img: https://media.licdn.com/mpr/mpr/shrinknp_400_400/p/5/005/064/3f4/29ff61f.jpg
+  img: https://media-exp1.licdn.com/dms/image/C4E03AQESOlSP4RjIng/profile-displayphoto-shrink_400_400/0?e=1607558400&v=beta&t=XroYkZvcIThHvg_jEFJZAYYD6_nEWs0bUO1242blohw
 - text: The Scala.js experience was great! Thanks to the compiler and better IDE support, I was immensely more productive
     writing Scala for the browser than I am with plain JS and, say, Angular.
   author: Clint Gilbert
   position: Harvard Medical School
-  img: https://media.licdn.com/mpr/mpr/shrinknp_400_400/AAEAAQAAAAAAAAP1AAAAJGIxNjg5YjRhLWIxM2ItNGY0ZC05OTc4LWU3MGEwYmZkMDkwNg.jpg
 - text: Being able to leverage our existing build and test infrastructure for Scala.js has been a great productivity and
     reliability boost compared to bringing in an entirely different stack such as TypeScript. We have a number of
     computation libraries that have been ported to a shared module and can be used on both the front-end and the backend,
     which in and of themselves have made investment worthwhile.
   author: Erik LaBianca
   position: Seventh Sense
-  img: https://media.licdn.com/mpr/mpr/shrinknp_400_400/p/2/000/220/0f3/212e7e9.jpg
+  img: https://media-exp1.licdn.com/dms/image/C4D03AQH4bMJ4qbHZlQ/profile-displayphoto-shrink_400_400/0?e=1607558400&v=beta&t=j0pF0YoDstemcCJh6rOarHssN7iDe-PPTgUNyERWfGw
 - text: Scala's type safety is essential to manage the complexity of these business rules. Scala.js gives us Scala's
     technical advantages and let us make a pleasingly responsive interface for our users.
   author: Gabriel Bezerra
   position: Co-founder of MF Metabolic Analyzer
-  img: https://media.licdn.com/mpr/mpr/shrinknp_400_400/p/1/000/0fb/207/27c4ba5.jpg
+  img: https://media-exp1.licdn.com/dms/image/C4E03AQHORY-BO9_oCA/profile-displayphoto-shrink_400_400/0?e=1607558400&v=beta&t=bLB0F5TSBp9Mj8vHgMFmSNzU6SEVWNUYn8xZ9sZ8cjU