Update from study-template

Refresh for cohort 015

.editorconfig

@@ -1,13 +1,37 @@
+# EditorConfig helps developers define and maintain consistent
+# coding styles between different editors and IDEs
 # editorconfig.org
+
 root = true
 
 [*]
-indent_style = space
-indent_size = 2
 end_of_line = lf
 charset = utf-8
 trim_trailing_whitespace = true
 insert_final_newline = true
+indent_style = space
+indent_size = 2
+
+[*.js]
+indent_style = space
+indent_size = 2
+
+[*.rb]
+indent_style = space
+indent_size = 2
+
+[*.hbs]
+insert_final_newline = false
+indent_style = space
+indent_size = 2
+
+[*.css]
+indent_style = space
+indent_size = 2
+
+[*.html]
+indent_style = space
+indent_size = 2
 
-[*.md]
+[*.{diff,md}]
 trim_trailing_whitespace = false

.remarkrc

@@ -1,6 +1,6 @@
 {
   "plugins": {
-    "lint": {
+    "remark-lint": {
       "blockquote-indentation": "2",
       "checkbox-character-style": {
         "checked": "x",