Add YAML formatting

Author: adamtheturtle

.pre-commit-config.yaml

@@ -58,6 +58,10 @@ repos:
       - id: file-contents-sorter
         files: spelling_private_dict\.txt$
       - id: trailing-whitespace
+  - repo: https://github.com/google/yamlfmt
+    rev: v0.13.0
+    hooks:
+      - id: yamlfmt
   - repo: local
     hooks:
       - id: actionlint

.yamlfmt

@@ -0,0 +1,5 @@
+formatter:
+    include_document_start: true
+    retain_line_breaks_single: true
+    trim_trailing_whitespace: true
+    end_of_file_newline: true

codecov.yaml

@@ -1,3 +1,4 @@
+---
 coverage:
   status:
     patch:

readthedocs.yaml

@@ -1,3 +1,4 @@
+---
 version: 2
 
 build:
@@ -7,10 +8,10 @@ build:
 
 python:
   install:
-     - method: pip
-       path: .
-       extra_requirements:
-           - dev
+    - method: pip
+      path: .
+      extra_requirements:
+        - dev
 
 sphinx:
   builder: html