Fix extra backticks in host code update documentation

Change-Id: Ibaf080a36ec0300708c777e01f3488cb0b7f83bc
Signed-off-by: Charles Paul Hofer <Charles.Hofer@ibm.com>
diff --git a/code-update.md b/code-update.md
index 5b8c772..ceb1578 100644
--- a/code-update.md
+++ b/code-update.md
@@ -212,11 +212,11 @@
   * Method 3: Via TFTP: Perform a POST request to call the `DownloadViaTFTP`
     method of `/xyz/openbmc_project/software`.
 
-        ```
-        curl -b cjar -k -H "Content-Type: application/json" -X POST \
-          -d '{"data": ["<filename>", "<TFTP server IP address"]}' \
-          https://bmc/xyz/openbmc_project/software/action/DownloadViaTFTP
-        ```
+      ```
+      curl -b cjar -k -H "Content-Type: application/json" -X POST \
+        -d '{"data": ["<filename>", "<TFTP server IP address"]}' \
+        https://bmc/xyz/openbmc_project/software/action/DownloadViaTFTP
+      ```
 
 3. Note the version id generated for that image file, which is a hash value of 8
 hexadecimal numbers generated by the C++ function std::hash using the version
@@ -226,23 +226,23 @@
   * Method 1: From the BMC command line, note the most recent directory name
     created under `/tmp/images/`, in this example it'd be `2a1022fe`:
 
-        ```
-        # ls -l /tmp/images/
-        total 0
-        drwx------    2 root     root            80 Aug 22 07:54 2a1022fe
-        drwx------    2 root     root            80 Aug 22 07:53 488449a2
-        ```
+      ```
+      # ls -l /tmp/images/
+      total 0
+      drwx------    2 root     root            80 Aug 22 07:54 2a1022fe
+      drwx------    2 root     root            80 Aug 22 07:53 488449a2
+      ```
 
   * Method 2: Using the REST API, note the object that has its Activation
     property set to Ready, in this example it'd be `2a1022fe`:
 
-        ```
-        $ curl -b cjar -k https://bmc/xyz/openbmc_project/software/enumerate
-        {
-          "data": {
-            "/xyz/openbmc_project/software/2a1022fe": {
-              "Activation": "xyz.openbmc_project.Software.Activation.Activations.Ready",
-        ```
+      ```
+      $ curl -b cjar -k https://bmc/xyz/openbmc_project/software/enumerate
+      {
+        "data": {
+          "/xyz/openbmc_project/software/2a1022fe": {
+            "Activation": "xyz.openbmc_project.Software.Activation.Activations.Ready",
+      ```
 
 4. To initiate the update, set the `RequestedActivation` property of the desired
 image to `Active`, substitute ``<id>`` with the hash value noted on the previous