New practice exercise rest-api (#831)

Author: jiegillet

bin/bootstrap_practice_exercise.exs

@@ -50,7 +50,7 @@ defmodule Generate do
           "#{var} :: TODO.t()"
 
         {var, sub_vars} ->
-          "#{var} :: %{#{Enum.map_join(sub_vars, ", ", &(&1 <> " : TODO.t()"))}}"
+          "#{var} :: %{#{Enum.map_join(sub_vars, ", ", &(&1 <> ": TODO.t()"))}}"
       end)
 
     variable_list = Enum.map_join(variables, ", ", fn {var, _} -> var end)

config.json

@@ -2852,7 +2852,11 @@
       }
     ],
     "foregone": [
+      "high-scores",
       "linked-list",
+      "micro-blog",
+      "rest-api",
+      "reverse-string",
       "robot-name"
     ]
   },