[Transformation] Edit comments in module

src/finn/transformation/__init__.py

@@ -23,6 +23,8 @@ from abc import ABC, abstractmethod
 
 
 class Transformation(ABC):
+    """Transformation class all transformations are based on. Contains only 
+    abstract method apply() every transformation has to fill."""
     def __init__(self):
         super().__init__()
 

src/finn/transformation/fpgadataflow/codegen_ipgen.py

@@ -33,7 +33,9 @@ class CodeGen_ipgen(Transformation):
     and create folder that contains all the generated files.
     All nodes in the graph must have the fpgadataflow backend attribute and 
     transformation gets additional arguments:
+    
     * fpgapart (string)
+    
     * clk in ns (int)
 
     Outcome if succesful: Node attribute "code_gen_dir_ipgen" contains path to folder 

src/finn/transformation/fpgadataflow/codegen_ipstitch.py

@@ -9,7 +9,8 @@ class CodeGen_ipstitch(Transformation):
     """Create a Vivado IP Block Design project from all the generated IPs of a
     graph. All nodes in the graph must have the fpgadataflow backend attribute,
     and the CodeGen_ipgen transformation must have been previously run on
-    the graph. The resulting block design is also packaged as IP.
+    the graph. The resulting block design is also packaged as IP. The 
+    transformation gets the fpgapart as a string.
 
     Outcome if successful: sets the vivado_stitch_proj attribute in the ONNX
     ModelProto's metadata_props field, with the created project dir as the

src/finn/transformation/fpgadataflow/make_deployment.py

@@ -10,9 +10,9 @@ from finn.util.basic import make_build_dir
 class DeployToPYNQ(Transformation):
     """Collects all necessary files for deployment and copies them to the PYNQ board.
     Expects information about PYNQ board to make scp possible:
-    * ip address of board
-    * username and password for board
-    * target directory where the files are stored on the board"""
+    
+    IP address of board, username and password for board and target directory where 
+    the files are stored on the board"""
 
     def __init__(self, ip, username, password, target_dir):
         super().__init__()