remove hot file

Author: JonasDoebertin

.gitignore

@@ -1,3 +1,7 @@
+### Project specific ###
+
+/source/hot
+
 # Created by https://www.toptal.com/developers/gitignore/api/phpstorm,node,macos,jigsaw
 # Edit at https://www.toptal.com/developers/gitignore?templates=phpstorm,node,macos,jigsaw
 
@@ -307,4 +311,4 @@ fabric.properties
 # https://plugins.jetbrains.com/plugin/8053-azure-toolkit-for-intellij
 .idea/**/azureSettings.xml
 
-# End of https://www.toptal.com/developers/gitignore/api/phpstorm,node,macos,jigsaw
+# End of https://www.toptal.com/developers/gitignore/api/phpstorm,node,macos,jigsaw