add .editorconfig & .pre-commit-config.yaml

.editorconfig

@@ -0,0 +1,11 @@
+# See https://editorconfig.org for more information
+root = true
+
+[*]
+end_of_line = lf
+trim_trailing_whitespace = true
+insert_final_newline = true
+charset = utf-8
+
+[*.{markdown,md}]
+trim_trailing_whitespace = false

.pre-commit-config.yaml

@@ -0,0 +1,22 @@
+# See https://pre-commit.com for more information
+repos:
+  - repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v4.4.0
+    hooks:
+      - id: check-added-large-files
+      - id: check-case-conflict
+      - id: check-yaml
+      - id: check-executables-have-shebangs
+      - id: check-shebang-scripts-are-executable
+      - id: destroyed-symlinks
+      - id: detect-private-key
+      - id: end-of-file-fixer
+      - id: fix-byte-order-marker
+      - id: trailing-whitespace
+        exclude_types: [markdown]
+
+  - repo: https://github.com/editorconfig-checker/editorconfig-checker.python
+    rev: "2.7.2"
+    hooks:
+      - id: editorconfig-checker
+        alias: ec