Tidying up (#210)

* Prevent trimming trailing whitespace in markdown files

* Use error code 2 instead of "error" consistently

* Use syntax highlighting in demos consistently

Author: maoberlehner

.editorconfig

@@ -7,3 +7,6 @@ indent_size = 2
 end_of_line = lf
 insert_final_newline = true
 trim_trailing_whitespace = true
+
+[*.md]
+trim_trailing_whitespace = false

README.md

@@ -21,7 +21,7 @@ If you want to check previous releases [go here](https://github.com/vuejs/eslint
 
 ## :cd: Installation
 
-```
+```bash
 npm install --save-dev eslint eslint-plugin-vue@beta
 ```
 

docs/rules/html-self-closing.md

@@ -16,7 +16,7 @@ This rule has options which specify self-closing style for each context.
 
 ```json
 {
-    "html-self-closing": ["error", {
+    "html-self-closing": [2, {
         "html": {
             "normal": "never",
             "void": "never",

docs/rules/max-attributes-per-line.md

@@ -38,12 +38,11 @@ There is a configurable number of attributes that are acceptable in one-line cas
   sit="4"
 >
 </component>
-
 ```
 
 ### :wrench:  Options
 
-```
+```json
 {
   "vue/max-attributes-per-line": [2, {
     "singleline": 3,

docs/rules/no-dupe-keys.md

@@ -58,10 +58,12 @@ This rule has an object option:
 
 ### Example:
 
-```
-vue/no-dupe-keys: [2, {
-  groups: ['asyncComputed']
-}]
+```json
+{
+  "vue/no-dupe-keys": [2, {
+    "groups": ["asyncComputed"]
+  }]
+}
 ```
 
 :-1: Examples of **incorrect** code for this configuration

docs/rules/no-parsing-error.md

@@ -37,7 +37,7 @@ Then reports syntax errors if exist.
 
 ```json
 {
-    "vue/no-parsing-error": ["error", {
+    "vue/no-parsing-error": [2, {
         "abrupt-closing-of-empty-comment": false,
         "absence-of-digits-in-numeric-character-reference": false,
         "cdata-in-html-content": false,

docs/rules/no-reserved-keys.md

@@ -37,11 +37,13 @@ This rule has an object option:
 
 ### Example:
 
-```
-vue/no-reserved-keys: [2, {
-  reserved: ['foo', 'foo2'],
-  groups: ['asyncComputed']
-}]
+```json
+{
+  "vue/no-reserved-keys": [2, {
+    "reserved": ["foo", "foo2"],
+    "groups": ["asyncComputed"]
+  }]
+}
 ```
 
 :-1: Examples of **incorrect** code for this configuration

docs/rules/no-reservered-keys.md

@@ -39,10 +39,12 @@ This rule has an object option:
 
 ### Example:
 
-```
-vue/no-dupe-keys: [2, {
-  reserved: ['foo']
-}]
+```json
+{
+  "vue/no-dupe-keys": [2, {
+    "reserved": ["foo"]
+  }]
+}
 ```
 
 :-1: Examples of **incorrect** code for this configuration

docs/rules/order-in-components.md

@@ -63,25 +63,27 @@ export default {
 
 If you want you can change the order providing the optional configuration in your `.eslintrc` file. Setting responsible for the above order looks like this:
 
-```
-vue/order-in-components: [2, {
-  order: [
-    ['name', 'delimiters', 'functional', 'model'],
-    ['components', 'directives', 'filters'],
-    ['parent', 'mixins', 'extends', 'provide', 'inject'],
-    'el',
-    'template',
-    'props',
-    'propsData',
-    'data',
-    'computed',
-    'watch',
-    'LIFECYCLE_HOOKS',
-    'methods',
-    'render',
-    'renderError'
-  ]
-}]
+```json
+{
+  "vue/order-in-components": [2, {
+    "order": [
+      ["name", "delimiters", "functional", "model"],
+      ["components", "directives", "filters"],
+      ["parent", "mixins", "extends", "provide", "inject"],
+      "el",
+      "template",
+      "props",
+      "propsData",
+      "data",
+      "computed",
+      "watch",
+      "LIFECYCLE_HOOKS",
+      "methods",
+      "render",
+      "renderError"
+    ]
+  }]
+}
 ```
 
 If you want some of properties to be treated equally in order you can group them into arrays, like we did with `name`, `delimiters`, `funcitonal` and `model`.

docs/rules/return-in-computed-property.md

@@ -37,8 +37,10 @@ export default {
 This rule has an object option:
 - `"treatUndefinedAsUnspecified"`: `true` (default) disallows implicitly returning undefined with a `return;` statement.
 
-```
-vue/return-in-computed-property: [2, {
-  treatUndefinedAsUnspecified: true
-}]
+```json
+{
+  "vue/return-in-computed-property": [2, {
+    "treatUndefinedAsUnspecified": true
+  }]
+}
 ```