Fix linting errors

Formatting with:
* markdownlint
* flake8
* pylint
* black
* isort

.flake8

@@ -0,0 +1,4 @@
+[flake8]
+max-line-length = 120
+ignore =
+    E231  # There should be whitespace after the characters ,, ;, and :. black; fixed in black 20 (https://github.com/psf/black/issues/1289)

.github/workflows/superlinter.yml

@@ -23,3 +23,4 @@ jobs:
         env:
           DEFAULT_BRANCH: main
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          LINTER_RULES_PATH: /

.isort.cfg

@@ -0,0 +1,11 @@
+[settings]
+profile=
+
+; vertical hanging indent mode also used in black configuration
+multi_line_output = 3
+
+; necessary because black expect the trailing comma
+include_trailing_comma = true
+
+; include our Django apps as first part
+known_first_party = TraceBase,DataRepo

.markdown-lint.yml

@@ -0,0 +1,35 @@
+---
+###########################
+###########################
+## Markdown Linter rules ##
+###########################
+###########################
+
+# Linter rules doc:
+# - https://github.com/DavidAnson/markdownlint
+#
+# Note:
+# To comment out a single error:
+#   <!-- markdownlint-disable -->
+#   any violations you want
+#   <!-- markdownlint-restore -->
+#
+
+###############
+# Rules by id #
+###############
+MD004: false                  # Unordered list style
+MD007:
+  indent: 2                   # Unordered list indentation
+MD013:
+  line_length: 400            # Line length 80 is far to short
+MD026:
+  punctuation: ".,;:!。，；:"  # List of not allowed
+MD029: false                  # Ordered list item prefix
+MD033: false                  # Allow inline HTML
+MD036: false                  # Emphasis used instead of a heading
+
+#################
+# Rules by tags #
+#################
+blank_lines: false  # Error on blank lines

.pylintrc

@@ -0,0 +1 @@
+.python-lint