Change pre-commit config and CONTRIBUTING.md

- Update hook versions
- Remove seed-isort-config
- Add black profile to isort

Author: Devanshu24

.pre-commit-config.yaml

@@ -1,37 +1,32 @@
 exclude: "^conda.recipe"
 repos:
   - repo: https://github.com/pre-commit/pre-commit-hooks
-    rev: v2.3.0
+    rev: v3.4.0
     hooks:
       - id: check-toml
       - id: check-yaml
       - id: end-of-file-fixer
       - id: trailing-whitespace
 
-  - repo: https://github.com/prettier/pre-commit
-    rev: main
+  - repo: https://github.com/pre-commit/mirrors-prettier
+    rev: v2.2.1
     hooks:
       - id: prettier
 
-  - repo: https://github.com/asottile/seed-isort-config
-    rev: v1.9.4
-    hooks:
-      - id: seed-isort-config
-        args: [--exclude=^((examples|docs)/.*)$]
-
-  - repo: https://github.com/timothycrosley/isort
-    rev: 4.3.21-2
-    hooks:
-      - id: isort
-
   - repo: https://github.com/python/black
     rev: 19.10b0
     hooks:
       - id: black
         language_version: python3.8
 
+  - repo: https://github.com/timothycrosley/isort
+    rev: 5.7.0
+    hooks:
+      - id: isort
+        args: ["--profile", "black"]
+
   - repo: https://gitlab.com/pycqa/flake8
-    rev: 3.7.7
+    rev: 3.8.4
     hooks:
       - id: flake8
         args: [--append-config=tox.ini]

CONTRIBUTING.md

@@ -104,8 +104,8 @@ black manually to format files and commit them.
 
 ```bash
 # This should autoformat the files
-isort -rc .
 black .
+isort --profile black .
 # Run lint checking
 flake8 ignite/ tests/ examples/
 # If everything is OK, then commit
@@ -157,6 +157,7 @@ bash tests/run_cpu_tests.sh
 ```
 
 On Windows, distributed tests should be skipped
+
 ```bash
 SKIP_DISTRIB_TESTS=1 bash tests/run_cpu_tests.sh
 ```