minor fixes, version bump

include/TConfig.h

@@ -8,13 +8,13 @@ class TConfig {
 public:
     explicit TConfig();
 
-    bool Failed() const { return mFailed; }
+    [[nodiscard]] bool Failed() const { return mFailed; }
 
 private:
     void CreateConfigFile(std::string_view name);
     void ParseFromFile(std::string_view name);
     void PrintDebug();
-    
+
     void ParseOldFormat();
 
     bool mFailed { false };