fix typo in "Explicit term inference" article

Author: Vito Jeng

_posts/2020-11-06-explicit-term-inference-in-scala-3.md

@@ -399,7 +399,7 @@ case class Mountain(name: String, height: Int)
 
 object Main extends App {
   implicit val mountainShow: Show[Mountain] =
-    Show.fromFunction((m: Mountain) => s"The ${m.name} is ${m.height} meters high")
+    Show.from((m: Mountain) => s"The ${m.name} is ${m.height} meters high")
 
   val mountains = List(Mountain("Mont Blanc", 4808), Mountain("Matterhon", 4478))
   println(mountains.show)