Minor doc tweaks

Author: fzaninotto

docs/Show.md

@@ -19,7 +19,7 @@ Here is the minimal code necessary to display a view to show a post:
 
 {% raw %}
 ```jsx
-// in src/posts.js
+// in src/posts.jsx
 import * as React from "react";
 import { Show, SimpleShowLayout, TextField, DateField, RichTextField } from 'react-admin';
 
@@ -34,7 +34,7 @@ export const PostShow = () => (
     </Show>
 );
 
-// in src/App.js
+// in src/App.jsx
 import * as React from "react";
 import { Admin, Resource } from 'react-admin';
 import jsonServerProvider from 'ra-data-json-server';

docs/ShowBase.md

@@ -20,7 +20,7 @@ Use `<ShowBase>` instead of `<Show>` when you want a completely custom page layo
 
 {% raw %}
 ```jsx
-// in src/posts.js
+// in src/posts.jsx
 import * as React from "react";
 import { ShowBase } from 'react-admin';
 
@@ -42,7 +42,7 @@ const PostShow = () => (
     </ShowBase>
 );
 
-// in src/App.js
+// in src/App.jsx
 import * as React from "react";
 import { Admin, Resource } from 'react-admin';
 import jsonServerProvider from 'ra-data-json-server';

docs/css/style-v18.css

@@ -276,6 +276,14 @@ ul.sidenav code {
     text-decoration: underline;
 }
 
+.markdown-section .highlight {
+    margin-bottom: 1em;
+}
+
+.marmelab-language-switcher-tabs {
+    margin-top: -0.5em;
+}
+
 @media only screen and (max-width: 992px) {
     img:not(.no-shadow) {
         width: 100%;
@@ -676,3 +684,4 @@ body.no-sidebar .sidenav-trigger {
     background-color: #f5f2f0;
     text-decoration: none !important;
 }
+