Merge pull request railsbridge#449 from tastycode/358-alt-text-accessibility

[railsbridge#358] Add alt-text for accessibility on installfest

Author: tjgrathwell

sites/en/installfest/_install_sublime_text_2_for_mac.step

@@ -15,7 +15,7 @@ step 'Select "Open with DiskImageMounter" in the file save dialog' do
 
   message "It will open an installer with a Sublime Text 2 icon and a picture of your Applications folder. Something like this:"
 
-  img src: 'img/install_sublime_text.png'
+  img src: 'img/install_sublime_text.png', alt: 'Contents of the sublime text package showing a sublime text icon and a shortcut to applications'
 
 end
 

sites/en/installfest/create_a_rails_app.step

@@ -56,11 +56,9 @@ step "Create a new Rails app" do
   message "If it does, congratulations! You've successfully installed Ruby AND Rails and started your server."
 
   tip "If it doesn't work, ask a TA for help."
-
+  message "* In your browser, go to <http://localhost:3000>"
+  img src: "img/successful_rails_install.png", alt: "Screenshot of the browser on localhost 3000 showing the rails intro page"
   message <<-MARKDOWN
-    * In your browser, go to <http://localhost:3000>
-
-    ![Successful Rails Install](img/successful_rails_install.png)
 
     * Back in the Terminal window where you ran <code>rails server</code>, type **Control-C** (don't type this into the console, but hold the Control and C keys at the same time) to kill(stop) the server. Windows will ask "Terminate batch job (Y/N)?".  Type "Y".
   MARKDOWN
@@ -95,7 +93,7 @@ step "Generate a database model" do
 
     (The window where you ran `rails server` will display debugging information as you do this.)
 
-    You should see: ![Drink was successfully created](img/get_a_sticker_you_should_see.png)
+    You should see: ![Screenshot of the drink detail page](img/get_a_sticker_you_should_see.png)
 
     In your terminal, Hold Control and hit C (or on Windows, Control-Break, Y) to stop the rails server.
   MARKDOWN

sites/en/installfest/install_xcode_from_app_store.step

@@ -14,6 +14,6 @@ step "Launch XCode"
 step "Install the Command Line Tools" do
   message "Open the Preferences menu and select the Downloads tab."
   message "Then click the 'Install' button next to 'Command Line Tools'."
-  img src: 'img/xcode-prefs.jpg', alt: 'XCode Preferences'
+  img src: 'img/xcode-prefs.jpg', alt: 'XCode Preferences showing the location of the install button for command line tools'
 end
 

sites/en/installfest/windows.step

@@ -5,21 +5,14 @@ You may need to login as Administrator, or give the Administrator password when
 MARKDOWN
 
 step "Run RailsInstaller" do
+  message "RailsInstaller includes Rails, Ruby, Git and SQLite."
+  message "Go to <http://railsinstaller.org/>, scroll to the 'Downloads' section, and download the RailsInstaller for Windows/Ruby 2.1."
+  message "Click on the downloaded file to run the install wizard.  Click Next at each step to accept the defaults."
+  message "Be sure to check the boxes for *Install git (recommended)* and  *Add executables for Ruby, DevKit Git (if checked above) to the PATH*"
 
-  message <<-MARKDOWN
-  RailsInstaller includes Rails, Ruby, Git, and SQLite.
+  img src: "img/WinRailsInstaller.jpg", alt: "Screenshot showing location of checkboxes for ensuring that Git is installed"
 
-  Go to <http://railsinstaller.org/>, scroll to the 'Downloads' section, and download the RailsInstaller for Windows/Ruby 2.1.
-
-  Click on the downloaded file to run the install wizard.  Click Next at each step to accept the defaults.
-
-  Be sure to check the boxes for *Install git (recommended)* and  *Add executables for Ruby, DevKit Git (if checked above) to the PATH*
-
-  ![WinRailsInstaller.jpg](img/WinRailsInstaller.jpg)
-
-  Rails will be installed in C:\\RailsInstaller and the directory for your Rails projects will be C:\\Sites
-
-  MARKDOWN
+  message "Rails will be installed in C:\\RailsInstaller and the directory for your Rails projects will be C:\\Sites"
 end
 
 step "Configure your git and ssh environment" do
@@ -40,7 +33,7 @@ step "Configure your git and ssh environment" do
 
   message "Here is a summary of your settings after this process:"
 
-  img src: 'img/railsbridge_windowsScreenshot-commandprompt_ror.png'
+  img src: 'img/railsbridge_windowsScreenshot-commandprompt_ror.png', alt: "Screenshot showing correct git, ruby, rails and ssh settings"
 
   message "Close the command prompt window."
 end
@@ -53,13 +46,13 @@ step "Update Git" do
 
   message "Run the installer, and it will ask you where you want to install it. Change it FROM C:\\Program Files\\Git  TO, C:\\RailsInstaller\\Git like the picture below."
 
-  img src: 'img/directory.png'
+  img src: 'img/directory.png', alt: "Screenshot showing the step of installation where the location to install git is set"
 
   message "It will warn you that the directory already exists. Click yes to install to that folder anyway."
 
   message "Click next twice, and select, Use Git from the Windows Command Prompt."
 
-  img src: 'img/command.png'
+  img src: 'img/command.png', alt: "Screenshot showing location choice to use git from Windows Command Prompt"
 
   message "Keep going and you'll have the latest version of Git installed!"
 
@@ -76,11 +69,11 @@ step "Open a Terminal" do
 
   div do
     option_half "Windows 7" do
-      img src: 'img/railsbridge_windows_findingCommandPrompt_win7.png'
+      img src: 'img/railsbridge_windows_findingCommandPrompt_win7.png', alt: "Screenshot showing search for command prompt"
     end
 
     option_half "Windows 8" do
-      img src: 'img/railsbridge_windows_findingCommandPrompt_win8.png'
+      img src: 'img/railsbridge_windows_findingCommandPrompt_win8.png', alt: "Screenshot showing search for command prompt"
     end
   end