added sections to DatabaseConnection

include/orm/databaseconnection.hpp

@@ -101,6 +101,7 @@ namespace Schema
         /*! Get the number of active transactions. */
         inline std::size_t transactionLevel() const;
 
+        /* Running SQL Queries */
         /*! Run a select statement against the database. */
         QSqlQuery
         select(const QString &queryString,
@@ -476,6 +477,8 @@ namespace Schema
         return *this;
     }
 
+    /* protected */
+
     template<typename Return>
     Return
     DatabaseConnection::run(
@@ -536,6 +539,8 @@ namespace Schema
         return std::invoke(callback, queryString, bindings);
     }
 
+    /* private */
+
     template<typename Return>
     Return
     DatabaseConnection::handleQueryException(