misc: add djhtml files/notes (#69422)

.git-blame-ignore-revs

@@ -8,3 +8,5 @@ a265c6267e75c831b8294a760f94b9d6cffb92ea
 7bc0fcadffd16564cc200cb2f32fae80b3c3a5cf
 # misc: apply black 22.1.0
 09c2a08d113b2194697fc0a3925d569184babe97
+# misc: apply djhtml (#69422)
+8251b8188fb57414214ace63459156b43ddda46d

.pre-commit-config.yaml

@@ -16,6 +16,11 @@ repos:
     hooks:
     - id: pyupgrade
       args: ['--keep-percent-format', '--py37-plus']
+- repo: https://github.com/rtts/djhtml
+  rev: 'v1.5.2'
+  hooks:
+    - id: djhtml
+      args: ['--tabwidth', '2']
 -   repo: https://git.entrouvert.org/pre-commit-debian.git
     rev: v0.1
     hooks:

README

@@ -87,9 +87,13 @@ pyupgrade is used to automatically upgrade syntax, using those parameters:
 
     pyupgrade --keep-percent-format --py37-plus
 
+djhtml is used to automatically indent html files, using those parameters:
+
+    django-upgrade --tabwidth 2
+
 There is .pre-commit-config.yaml to use pre-commit to automatically run black,
-isort and pyupgrade before commits. (execute `pre-commit install` to install
-the git hook.)
+isort, pyupgrade, and djhtml before commits. (execute `pre-commit install`
+to install the git hook.)
 
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