more concise description of overwrite option for get cmd

src/pycage/get.py

@@ -124,7 +124,13 @@ def extract_archive(
     is_flag=True,
     show_default=True,
     default=False,
-    help="overwrite installation folder instead of deleting",
+    help=(
+        "overwrite installation with specified Python bundle instead of deleting it, any "
+        "pre-compiled files are deleted to force the re-comilation of the code by the new "
+        "Python interpreter. CAUTION: No compatibility checks for the installed packages is "
+        "done. Therefore, it is not guaranteed that the new installation will work. This "
+        "option is primarily intented for patch versions of Python."
+    ),
 )
 @click.option(
     "-k",