Add .credo.exs to .formatter.exs (#4)

Additionally, run `mix format`.

.credo.exs

@@ -1,5 +1,6 @@
 %{
-	configs: [%{
+  configs: [
+    %{
       name: "default",
       files: %{
         included: ["lib/", "test/"],
@@ -12,12 +13,10 @@
         {Credo.Check.Consistency.SpaceAroundOperators},
         {Credo.Check.Consistency.SpaceInParentheses},
         {Credo.Check.Consistency.TabsOrSpaces},
-			
         {Credo.Check.Design.AliasUsage, priority: :low},
         {Credo.Check.Design.DuplicatedCode, excluded_macros: []},
         {Credo.Check.Design.TagTODO, exit_status: 2},
         {Credo.Check.Design.TagFIXME},
-
         {Credo.Check.Readability.FunctionNames},
         {Credo.Check.Readability.LargeNumbers},
         {Credo.Check.Readability.MaxLineLength, priority: :low, max_length: 80},
@@ -35,7 +34,6 @@
         {Credo.Check.Readability.VariableNames},
         {Credo.Check.Readability.Semicolons},
         {Credo.Check.Readability.SpaceAfterCommas},
-
         {Credo.Check.Refactor.DoubleBooleanNegation},
         {Credo.Check.Refactor.CondStatements},
         {Credo.Check.Refactor.CyclomaticComplexity},
@@ -47,7 +45,6 @@
         {Credo.Check.Refactor.Nesting},
         {Credo.Check.Refactor.PipeChainStart},
         {Credo.Check.Refactor.UnlessWithElse},
-
         {Credo.Check.Warning.BoolOperationOnSameValues},
         {Credo.Check.Warning.IExPry},
         {Credo.Check.Warning.IoInspect},
@@ -62,7 +59,8 @@
         {Credo.Check.Warning.UnusedRegexOperation},
         {Credo.Check.Warning.UnusedStringOperation},
         {Credo.Check.Warning.UnusedTupleOperation},
-			{Credo.Check.Warning.RaiseInsideRescue},
+        {Credo.Check.Warning.RaiseInsideRescue}
+      ]
+    }
   ]
-	}]
 }

.formatter.exs

@@ -1,3 +1,3 @@
 [
-  inputs: ["{mix,.formatter}.exs", "{config,lib,test}/**/*.{ex,exs}"]
+  inputs: ["{mix,.formatter,.credo}.exs", "{config,lib,test}/**/*.{ex,exs}"]
 ]