diff --git a/examples/errors/errors.go b/examples/errors/errors.go
index 48ee27e..72a20b0 100644
--- a/examples/errors/errors.go
+++ b/examples/errors/errors.go
@@ -23,7 +23,7 @@ func f1(arg int) (int, error) {
 
     }
 
-    // A nil value in the error position indicates that
+    // A `nil` value in the error position indicates that
     // there was no error.
     return arg + 3, nil
 }
@@ -74,7 +74,7 @@ func main() {
     }
 
     // If you want to programmatically use the data in
-    // a custom error, you'll need to get the error  as an
+    // a custom error, you'll need to get the error as an
     // instance of the custom error type via type
     // assertion.
     _, e := f2(42)
diff --git a/examples/errors/errors.hash b/examples/errors/errors.hash
index aceb00c..d0b2112 100644
--- a/examples/errors/errors.hash
+++ b/examples/errors/errors.hash
@@ -1,2 +1,2 @@
-07cffb3d4e37162ab7e9e0a192561ddc8042b81a
-BmDQXkPPTk
+210ba0f8196006c0380acaec01655816848ef168
+mP_ZR1qjUvA
diff --git a/examples/maps/maps.go b/examples/maps/maps.go
index 425532e..2ed1363 100644
--- a/examples/maps/maps.go
+++ b/examples/maps/maps.go
@@ -16,7 +16,7 @@ func main() {
     m["k1"] = 7
     m["k2"] = 13
 
-    // Printing a map with e.g. `Println` will show all of
+    // Printing a map with e.g. `fmt.Println` will show all of
     // its key/value pairs.
     fmt.Println("map:", m)
 
diff --git a/examples/maps/maps.hash b/examples/maps/maps.hash
index c5f8c38..57c1a72 100644
--- a/examples/maps/maps.hash
+++ b/examples/maps/maps.hash
@@ -1,2 +1,2 @@
-2895d63b87f88ab374256c12dd1539cf7b070b77
-E6cGoiKqka
+3e39d07e3f80ecbac558c6fb8baee2a5f914cf97
+U67R66Oab8r
diff --git a/examples/slices/slices.go b/examples/slices/slices.go
index 1918f98..521d1af 100644
--- a/examples/slices/slices.go
+++ b/examples/slices/slices.go
@@ -30,7 +30,7 @@ func main() {
     // arrays. One is the builtin `append`, which
     // returns a slice containing one or more new values.
     // Note that we need to accept a return value from
-    // append as we may get a new slice value.
+    // `append` as we may get a new slice value.
     s = append(s, "d")
     s = append(s, "e", "f")
     fmt.Println("apd:", s)
diff --git a/examples/slices/slices.hash b/examples/slices/slices.hash
index 68bb6a1..8b501cb 100644
--- a/examples/slices/slices.hash
+++ b/examples/slices/slices.hash
@@ -1,2 +1,2 @@
-d900c3b1cf2bd96591f7ad7ce7fd9e592ec31139
-dPQErsP6Yc
+c6fa1627841f199dbf901f88580cb97eb92c5530
+Z3_U32sn8RF
diff --git a/examples/variadic-functions/variadic-functions.go b/examples/variadic-functions/variadic-functions.go
index 8277bea..5ee4ef2 100644
--- a/examples/variadic-functions/variadic-functions.go
+++ b/examples/variadic-functions/variadic-functions.go
@@ -8,7 +8,7 @@ package main
 import "fmt"
 
 // Here's a function that will take an arbitrary number
-// of `ints` as arguments.
+// of `int`s as arguments.
 func sum(nums ...int) {
     fmt.Print(nums, " ")
     total := 0
diff --git a/examples/variadic-functions/variadic-functions.hash b/examples/variadic-functions/variadic-functions.hash
index 95ad82d..3c44a2b 100644
--- a/examples/variadic-functions/variadic-functions.hash
+++ b/examples/variadic-functions/variadic-functions.hash
@@ -1,2 +1,2 @@
-25bcf8d28adf0587d1959e88f32786d7f21872b2
-wRPLOM1VIH
+34ba16069a5d972a837cc5c0172ab30873535220
+7f0JlVhToDD
diff --git a/public/errors b/public/errors
index ae50908..d402097 100644
--- a/public/errors
+++ b/public/errors
@@ -46,7 +46,7 @@ non-error tasks.</p>
             
           </td>
           <td class="code leading">
-	        <a href="http://play.golang.org/p/BmDQXkPPTk"><img title="Run code" src="play.png" class="run" /></a>
+	        <a href="http://play.golang.org/p/mP_ZR1qjUvA"><img title="Run code" src="play.png" class="run" /></a>
             <div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
 </pre></div>
 
@@ -109,7 +109,7 @@ with the given error message.</p>
         
         <tr>
           <td class="docs">
-            <p>A nil value in the error position indicates that
+            <p>A <code>nil</code> value in the error position indicates that
 there was no error.</p>
 
           </td>
@@ -230,7 +230,7 @@ idiom in Go code.</p>
         <tr>
           <td class="docs">
             <p>If you want to programmatically use the data in
-a custom error, you&rsquo;ll need to get the error  as an
+a custom error, you&rsquo;ll need to get the error as an
 instance of the custom error type via type
 assertion.</p>
 
diff --git a/public/maps b/public/maps
index 114b8d0..2829d28 100644
--- a/public/maps
+++ b/public/maps
@@ -40,7 +40,7 @@
             
           </td>
           <td class="code leading">
-	        <a href="http://play.golang.org/p/E6cGoiKqka"><img title="Run code" src="play.png" class="run" /></a>
+	        <a href="http://play.golang.org/p/U67R66Oab8r"><img title="Run code" src="play.png" class="run" /></a>
             <div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
 </pre></div>
 
@@ -102,7 +102,7 @@ syntax.</p>
         
         <tr>
           <td class="docs">
-            <p>Printing a map with e.g. <code>Println</code> will show all of
+            <p>Printing a map with e.g. <code>fmt.Println</code> will show all of
 its key/value pairs.</p>
 
           </td>
diff --git a/public/slices b/public/slices
index 21a827d..412b741 100644
--- a/public/slices
+++ b/public/slices
@@ -40,7 +40,7 @@ powerful interface to sequences than arrays.</p>
             
           </td>
           <td class="code leading">
-	        <a href="http://play.golang.org/p/dPQErsP6Yc"><img title="Run code" src="play.png" class="run" /></a>
+	        <a href="http://play.golang.org/p/Z3_U32sn8RF"><img title="Run code" src="play.png" class="run" /></a>
             <div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
 </pre></div>
 
@@ -126,7 +126,7 @@ support several more that make them richer than
 arrays. One is the builtin <code>append</code>, which
 returns a slice containing one or more new values.
 Note that we need to accept a return value from
-append as we may get a new slice value.</p>
+<code>append</code> as we may get a new slice value.</p>
 
           </td>
           <td class="code leading">
diff --git a/public/variadic-functions b/public/variadic-functions
index a901b83..49b6a0f 100644
--- a/public/variadic-functions
+++ b/public/variadic-functions
@@ -42,7 +42,7 @@ function.</p>
             
           </td>
           <td class="code leading">
-	        <a href="http://play.golang.org/p/wRPLOM1VIH"><img title="Run code" src="play.png" class="run" /></a>
+	        <a href="http://play.golang.org/p/7f0JlVhToDD"><img title="Run code" src="play.png" class="run" /></a>
             <div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
 </pre></div>
 
@@ -64,7 +64,7 @@ function.</p>
         <tr>
           <td class="docs">
             <p>Here&rsquo;s a function that will take an arbitrary number
-of <code>ints</code> as arguments.</p>
+of <code>int</code>s as arguments.</p>
 
           </td>
           <td class="code leading">