Cleaned up doc errors

README.rdoc

@@ -151,7 +151,7 @@ You can manage the presentation with the following keys:
 = Preshow
 
 If you want to show a slideshow while you wait to speak, you can run a preshow.  Add a +_preshow+ directory
-to your project (I use a symlink, so I don't have to add all the images into Git), put a bunch of images in the +_preshow+ directory and optionally add a +preshow.json+ file that provides descriptions for any of the images.
+to your project (I use a symlink, so I don't have to add all the images into Git), put a bunch of images in the +_preshow+ directory and optionally add a +preshow+.+json+ file that provides descriptions for any of the images.
 If you then press 'p' at the beginning of your presentation, it will prompt you for a number of minutes until
 you start.  Then it will count down the time until then, flipping through your pictures to entertain the
 audience in the meantime.  Press 'p' again to stop, or wait until the timer runs out.
@@ -217,17 +217,17 @@ The same applies to the *showoff:prev* event, of course.
 
 To insert custom Stylesheets into your presentation you can either place it into
 a file (with extension .css) or into the root directory of your presentation or
-you can embed a +<link>+-element directly into your slides. This stylesheet will
+you can embed a <+link+>-element directly into your slides. This stylesheet will
 be applied as soon as it is loaded.
 
-The content generated by the slide is wrapped with a +div+ with the class +.content+ like this.
+The content generated by the slide is wrapped with a +div+ with the class .+content+ like this.
 
     <div ref="intro/01_slide/1" class="content" style="margin-top: 210px;">
     <h1>jQuery &amp; Sinatra</h1>
     <h2>A Classy Combination</h2>
     </div>
 
-This makes the +.content+ tag a perfect place to add additional styling if that
+This makes the .+content+ tag a perfect place to add additional styling if that
 is your preference. An example of adding some styling is here.
 
     .content {
@@ -245,7 +245,7 @@ is your preference. An example of adding some styling is here.
       content: url(jay_small.png);
     }
 
-Note that the example above uses CSS3 styling with +::after+ and the +content+
+Note that the example above uses CSS3 styling with ::+after+ and the +content+
 -attribute to add an image to the slides.
 
 = Editor integration