Speakers: add Jaromir Tesar

spec/22/speakers.yaml

@@ -98,5 +98,11 @@
   twitter: jilm
   bio: Eurofederalista, neoliberál, globalista
   orgs: |
-     Spoluzakladatel spolku [Pro euro](https://proeuro.cz)
+    Spoluzakladatel spolku [Pro euro](https://proeuro.cz)
+- id: jaromir-tesar
+  name: Jaromír Tesař
+  twitter: JaromirTesar
+  bio: Blockchain expert, Cardano Ambassador
+  orgs: |
+    [Cardanians](https://cardanians.io/cs)