diff --git a/README.md b/README.md
index 0703e2c..aae4d92 100644
--- a/README.md
+++ b/README.md
@@ -46,13 +46,17 @@ While this isn't the purpose of the emulator, it is functional, and is
 my first test target for most of the work. With MacOS 10.11.6 and
 Homebrew, you can build and run it like this:
 
-```  $ make opencv
-  $ ./aiie-opencv /path/to/disk.dsk```
+<pre>
+  $ make opencv
+  $ ./aiie-opencv /path/to/disk.dsk
+</pre>
 
 As the name implies, this requires that OpenCV is installed and in
 /usr/local/lib. I've done that with Homebrew like this
 
-```  $ brew install opencv```
+<pre>
+  $ brew install opencv
+</pre>
 
 "Why OpenCV?" you might ask. Well, it's just because I had code from
 another project lying around that directly manipulated OpenCV bitmap
@@ -69,22 +73,28 @@ together the MMU, virtual keyboard, and virtual display.
 Then there are the physical interfaces, which aren't as well
 organized. They exist as globals in globals.cpp:
 
-```	   FileManager *g_filemanager = NULL;
+<pre>
+	   FileManager *g_filemanager = NULL;
 	   PhysicalDisplay *g_display = NULL;
 	   PhysicalKeyboard *g_keyboard = NULL;
 	   PhysicalSpeaker *g_speaker = NULL;
-	   PhysicalPaddles *g_paddles = NULL;```
+	   PhysicalPaddles *g_paddles = NULL;
+</pre>
 
 There are the two globals that point to the VM and the virtual CPU:
 
-```	   Cpu *g_cpu = NULL;
-	   VM *g_vm = NULL;```
+<pre>
+	   Cpu *g_cpu = NULL;
+	   VM *g_vm = NULL;
+</pre>
 
 And there are two global configuration values that probably belong in
 some sort of Prefs class:
 
-```	   int16_t g_volume;
-	   uint8_t g_displayType;```
+<pre>
+	   int16_t g_volume;
+	   uint8_t g_displayType;
+</pre>
 
 
 CPU