fix: scrutinizer tabs and editorconfig

.editorconfig

@@ -0,0 +1,15 @@
+; This file is for unifying the coding style for different editors and IDEs.
+; More information at http://editorconfig.org
+
+root = true
+
+[*]
+charset = utf-8
+indent_size = 4
+indent_style = space
+end_of_line = lf
+insert_final_newline = true
+trim_trailing_whitespace = true
+
+[*.md]
+trim_trailing_whitespace = false

.scrutinizer.yml

@@ -1,19 +1,19 @@
 filter:
-	excluded_paths:
-		- 'tests/*'
-checks:
-	php: true
-build:
-	environment:
-		php:
-			version: 7.3
-	dependencies:
-		before:
-			- composer require phpunit/phpunit:^8.4 --dev
-	tests:
-		override:
-			-
-				command: vendor/bin/phpunit --coverage-clover=clover.xml
-				coverage:
-					file: clover.xml
-					format: php-clover
+  excluded_paths:
+  - 'tests/*'
+  checks:
+    php: true
+  build:
+    environment:
+    php:
+      version: 7.3
+    dependencies:
+      before:
+        - composer require phpunit/phpunit:^8.4 --dev
+    tests:
+      override:
+        -
+          command: vendor/bin/phpunit --coverage-clover=clover.xml
+          coverage:
+            file: clover.xml
+            format: php-clover