Add readme

shared/inc/values/DnaDB.hpp

@@ -10,6 +10,7 @@ class DnaDB
 public:
   void init(const char *db_name = "data.db");
   void deinit();
+  
   std::vector<int64_t> getUserIds();
   int insertUser(int64_t id, int64_t max_gen);
   int updateUser(int64_t id, int64_t max_gen);