1 files changed, 8 insertions, 8 deletions
diff --git a/guides/source/getting_started.md b/guides/source/getting_started.md
index c2a0fde54e..31f78ba11c 100644
--- a/guides/source/getting_started.md
+++ b/guides/source/getting_started.md
@@ -90,18 +90,18 @@ current version of Ruby installed:
 TIP: A number of tools exist to help you quickly install Ruby and Ruby
 on Rails on your system. Windows users can use [Rails Installer](http://railsinstaller.org),
 while Mac OS X users can use [Tokaido](https://github.com/tokaido/tokaidoapp).
+For more installation methods for most Operating Systems take a look at
+[ruby-lang.org](https://www.ruby-lang.org/en/documentation/installation/).
 
 ```bash
 $ ruby -v
 ruby 2.0.0p353
 ```
 
-If you don't have Ruby installed have a look at
-[ruby-lang.org](https://www.ruby-lang.org/en/installation/) for possible ways to
-install Ruby on your platform.
-
-Many popular UNIX-like OSes ship with an acceptable version of SQLite3. Windows
-users and others can find installation instructions at the [SQLite3 website](https://www.sqlite.org).
+Many popular UNIX-like OSes ship with an acceptable version of SQLite3.
+On Windows, if you installed Rails through Rails Installer, you
+already have SQLite installed. Others can find installation instructions
+at the [SQLite3 website](https://www.sqlite.org).
 Verify that it is correctly installed and in your PATH:
 
 ```bash
@@ -677,7 +677,7 @@ class CreateArticles < ActiveRecord::Migration
       t.string :title
       t.text :text
 
-      t.timestamps
+      t.timestamps null: false
     end
   end
 end
@@ -1539,7 +1539,7 @@ class CreateComments < ActiveRecord::Migration
       # this line adds an integer column called `article_id`.
       t.references :article, index: true
 
-      t.timestamps
+      t.timestamps null: false
     end
   end
 end