Afegit physics a notes
diff --git a/apuntsfme.dtx b/apuntsfme.dtx
index 5201352..7fa777f 100644
--- a/apuntsfme.dtx
+++ b/apuntsfme.dtx
@@ -514,7 +514,7 @@
 \RequirePackage[utf8]{inputenc}
 \RequirePackage[T1]{fontenc}
 \RequirePackage{lmodern}
-\RequirePackage{graphicx}
+\RequirePackage{graphicx,physics}
 %    \end{macrocode}
 %
 % \subsection{Language}