chore: modifying the examples

Author: SuperFola

example/ok.ark

@@ -1,3 +1,2 @@
 (let a 1)
 (print a)
-

example/bad.ark renamed to example/switch.ark

@@ -14,10 +14,8 @@
 # =end
 # @author https://github.com/SuperFola
 ($ switch (value case then ...cases) {
-    ($if (= "_" ($repr case))
-        then
-        (if (= value case)
-            then
-            ($if (>= (len cases) 2)
-                (switch value ...cases))))})
-
+  ($if (= "_" ($repr case))
+    then
+    (if (= value case)
+      then
+      ($if (>= (len cases) 2) (switch value ...cases)))) })