Mark core gems with mrbgem tag

mrbgems/mruby-array-ext/src/array.c

@@ -4,7 +4,7 @@
 #include "mruby/range.h"
 #include "mruby/hash.h"
 
-/*
+/**
  *  call-seq:
  *     ary.assoc(obj)   -> new_ary  or  nil
  *
@@ -22,8 +22,9 @@
  *     a  = [ s1, s2, s3 ]
  *     a.assoc("letters")  #=> [ "letters", "a", "b", "c" ]
  *     a.assoc("foo")      #=> nil
+ *
+ * @mrbgem mruby-array-ext
  */
-
 static mrb_value
 mrb_ary_assoc(mrb_state *mrb, mrb_value ary)
 {
@@ -73,7 +74,7 @@ mrb_ary_rassoc(mrb_state *mrb, mrb_value ary)
   return mrb_nil_value();
 }
 
-/*
+/**
  *  call-seq:
  *     ary.at(index)   ->   obj  or nil
  *
@@ -84,8 +85,9 @@ mrb_ary_rassoc(mrb_state *mrb, mrb_value ary)
  *     a = [ "a", "b", "c", "d", "e" ]
  *     a.at(0)     #=> "a"
  *     a.at(-1)    #=> "e"
+ *
+ * @mrbgem mruby-array-ext
  */
-
 static mrb_value
 mrb_ary_at(mrb_state *mrb, mrb_value ary)
 {
@@ -95,6 +97,10 @@ mrb_ary_at(mrb_state *mrb, mrb_value ary)
   return mrb_ary_entry(ary, pos);
 }
 
+/**
+ *
+ * @mrbgem mruby-array-ext
+ */
 static mrb_value
 mrb_ary_values_at(mrb_state *mrb, mrb_value self)
 {
@@ -106,7 +112,7 @@ mrb_ary_values_at(mrb_state *mrb, mrb_value self)
   return mrb_get_values_at(mrb, self, RARRAY_LEN(self), argc, argv, mrb_ary_ref);
 }
 
-/*
+/**
  *  call-seq:
  *     ary.to_h   ->   Hash
  *
@@ -115,8 +121,9 @@ mrb_ary_values_at(mrb_state *mrb, mrb_value self)
  *
  *     [[:foo, :bar], [1, 2]].to_h
  *       # => {:foo => :bar, 1 => 2}
+ *
+ * @mrbgem mruby-array-ext
  */
-
 static mrb_value
 mrb_ary_to_h(mrb_state *mrb, mrb_value ary)
 {