Update pre-commit config

Author: homebysix

.pre-commit-config.yaml

@@ -1,21 +1,22 @@
 repos:
-- repo: https://github.com/pre-commit/pre-commit-hooks
-  rev: v3.3.0
-  hooks:
-  - id: check-ast
-  - id: check-byte-order-marker
-  - id: check-case-conflict
-  - id: check-docstring-first
-  - id: check-executables-have-shebangs
-  - id: check-merge-conflict
-  - id: check-yaml
-  - id: end-of-file-fixer
-  - id: fix-encoding-pragma
-  - id: mixed-line-ending
-  - id: no-commit-to-branch
-  - id: trailing-whitespace
-    args: [--markdown-linebreak-ext=md]
-- repo: https://github.com/python/black
-  rev: 20.8b1
-  hooks:
-  - id: black
+  - repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v3.4.0
+    hooks:
+      - id: check-ast
+      - id: check-byte-order-marker
+      - id: check-case-conflict
+      - id: check-docstring-first
+      - id: check-executables-have-shebangs
+      - id: check-merge-conflict
+      - id: check-yaml
+      - id: end-of-file-fixer
+      - id: fix-encoding-pragma
+      - id: mixed-line-ending
+      - id: no-commit-to-branch
+        args: [--branch, main]
+      - id: trailing-whitespace
+        args: [--markdown-linebreak-ext=md]
+  - repo: https://github.com/python/black
+    rev: 20.8b1
+    hooks:
+      - id: black