added ini file, switched to Python2, implemented screenshot feature

esm2markdown.ini

@@ -0,0 +1,20 @@
+[config]
+# Configure here the style of keys and values e.g. to bold or italic.
+# Default: Keys are displayed in bold, values have no specific style
+key_style = **
+value_style =
+
+# Configure here how your lists will look like in Markdown
+level1 = *   "
+level2 = "    * "
+level3 = "        * "
+
+# Configure here if Rules should be alphabetically sorted or not
+sort_rules = True
+
+# Configure TOC generation
+toc = True
+
+# Configure inclusion of images
+images = False
+imagepath = images