Fix documentation

source/examples/HotReloadDemo/PluginV2/src/CppWidget.cpp

@@ -1,5 +1,8 @@
-/* CppWidget V2 -- "after your edit". See PluginV1/src/CppWidget.cpp
- * for "before".
+/**
+ * @file CppWidget.cpp
+ * @brief CppWidget V2 -- "after your edit". See PluginV1/src/CppWidget.cpp
+ * for "before". Every member defined here is documented in
+ * ../Shared/CppWidgetApi.h.
  */
 #include "CppWidgetApi.h"
 

source/examples/HotReloadDemo/PluginV2/src/Plugin.cpp

@@ -1,7 +1,10 @@
-/* PluginV2 -- "after your edit". See PluginV1/src/Plugin.cpp for
+/**
+ * @file Plugin.cpp
+ * @brief PluginV2 -- "after your edit". See PluginV1/src/Plugin.cpp for
  * "before". plugin_tick's behavior changed, plugin_legacy_feature was
  * deleted, and plugin_new_feature was added -- exactly the three kinds
  * of change hot_reload.h's HotReloadSymbolEvent enum distinguishes.
+ * Every function defined here is documented in ../Shared/PluginApi.h.
  */
 #include "PluginApi.h"
 
@@ -24,9 +27,8 @@ int plugin_new_feature(int input)
 }
 
 #if defined(__GNUC__) || defined(__clang__)
-int plugin_tiny_function(int input)
+void plugin_tiny_function(void)
 {
-	return input + 2;
 }
 #endif