Update preparation.md

Author: multitudes

preparation.md

@@ -1,4 +1,8 @@
+# Preparation of the environment in Xcode
 
+Last year I did the challenges in the Xcode Swift playgrounds.
+I did encounter some problems though. Playgrounds are much slower in executing the code on their main page, because they are doing quite a few checks in the background and while it is fun to use them for try out some code, they do not offer the true Swift speed.
+This year I wanna try something different with the Swift package manager. This allows me to have an executable package and to pack all my files in it.
 Also I could eventually make a library with the most used functions and import it separately.  
 Sounds like something new and exciting for me, so I can learn more about packages as well!