commented out unstable features from rustfmt.toml

rustfmt.toml

@@ -6,13 +6,13 @@
 # newline_style = "Auto"
 # use_small_heuristics = "Default"
 # indent_style = "Block"
-wrap_comments = true
-format_code_in_doc_comments = true
-comment_width = 80
+# wrap_comments = true
+#format_code_in_doc_comments = true
+#comment_width = 80
 # normalize_comments = true
 # normalize_doc_attributes = true
 # license_template_path = ""
-format_strings = true
+# format_strings = true
 # format_macro_matchers = true
 # format_macro_bodies = true
 # empty_item_single_line = true