Changed crystal template, picked latest flask one

template/crystal/function/handler.cr

@@ -0,0 +1,7 @@
+require "json"
+
+class Handler
+  def run(req : String)
+    return JSON::Any.new("Hello, Crystal. You said: #{req}")
+  end
+end

template/crystal/function/shard.yml

@@ -0,0 +1,7 @@
+name: crystal_faas_function
+version: 0.1.0
+
+# dependencies:
+#   pg:
+#     github: will/crystal-pg
+#     version: "~> 0.5"