Update .editorconfig and grumphp file.

.editorconfig

@@ -6,13 +6,10 @@
 
 root = true
 
-[*.{php,inc,module}]
+[*.{php,json,json.dist,yml,yml.dist,yaml,yaml.dist}]
 charset = utf-8
 end_of_line = lf
 insert_final_newline = true
 trim_trailing_whitespace = true
 indent_style = space
 indent_size = 4
-
-[*.{json,json.dist,yml,yml.dist}]
-indent_size = 4

grumphp.yml.dist

@@ -1,19 +1,19 @@
 imports:
-  - { resource: vendor/drupol/php-conventions/config/php71/grumphp.yml }
+    - { resource: vendor/drupol/php-conventions/config/php71/grumphp.yml }
 
 parameters:
-  process_timeout: 600
-  extra_tasks:
-    phpspec:
-      verbose: true
-      metadata:
-        priority: 3000
-    infection:
-      threads: 10
-      test_framework: phpspec
-      configuration: infection.json.dist
-      min_msi: 50
-      min_covered_msi: 50
-      metadata:
-        priority: 2000
+    process_timeout: 600
+    extra_tasks:
+        phpspec:
+            verbose: true
+            metadata:
+                priority: 3000
+        infection:
+            threads: 10
+            test_framework: phpspec
+            configuration: infection.json.dist
+            min_msi: 50
+            min_covered_msi: 50
+            metadata:
+                priority: 2000