Apply suggestion to soitool/soi.py

soitool/soi.py

@@ -313,7 +313,7 @@ class SOI:
         self.modules = modules
         self.attachments = attachments
 
-        # the following properties are relevant when self.placement_strategy
+        # The following properties are relevant when self.placement_strategy
         # is "auto". They are used by rectpack
         self.algorithm_bin = algorithm_bin
         self.algorithm_pack = algorithm_pack