Merge doc/api/mruby/hash.h.md docs

include/mruby/hash.h

@@ -24,15 +24,39 @@ struct RHash {
 #define mrb_hash_value(p)  mrb_obj_value((void*)(p))
 
 MRB_API mrb_value mrb_hash_new_capa(mrb_state*, int);
+
+/*
+ * Initializes a new hash.
+ */
 MRB_API mrb_value mrb_hash_new(mrb_state *mrb);
 
+/*
+ * Sets a keys and values to hashes.
+ */
 MRB_API void mrb_hash_set(mrb_state *mrb, mrb_value hash, mrb_value key, mrb_value val);
+
+/*
+ * Gets a value from a key.
+ */
 MRB_API mrb_value mrb_hash_get(mrb_state *mrb, mrb_value hash, mrb_value key);
+
 MRB_API mrb_value mrb_hash_fetch(mrb_state *mrb, mrb_value hash, mrb_value key, mrb_value def);
+
+/*
+ * Deletes hash key and value pair.
+ */
 MRB_API mrb_value mrb_hash_delete_key(mrb_state *mrb, mrb_value hash, mrb_value key);
+
+/*
+ * Gets an array of keys.
+ */
 MRB_API mrb_value mrb_hash_keys(mrb_state *mrb, mrb_value hash);
 MRB_API mrb_value mrb_check_hash_type(mrb_state *mrb, mrb_value hash);
 MRB_API mrb_value mrb_hash_empty_p(mrb_state *mrb, mrb_value self);
+
+/*
+ * Clears the hash.
+ */
 MRB_API mrb_value mrb_hash_clear(mrb_state *mrb, mrb_value hash);
 
 /* RHASH_TBL allocates st_table if not available. */