README: format changes suggested by markdownlint

Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Change-Id: I189f176f9ea6ef16603f962bbd109678edb54fb6
diff --git a/README.md b/README.md
index 3de5b9e..60c4df0 100644
--- a/README.md
+++ b/README.md
@@ -3,21 +3,24 @@
 phosphor-virtual-sensor reads in virtual_sensor_config.json
 There are two types of data in this file:
 
-#### 1) virtual sensor configuration information
+## virtual sensor configuration information
+
 See virtual_sensor_config.json in this repository for an example. Sensors added
 this way can use any expression that is accepted by exprtk.
 
-#### 2) information to get a virtual sensor configuraton from D-Bus
+## information to get a virtual sensor configuraton from D-Bus
+
 For example:
+
+```json
+{
+  "Desc": {
+    "Config": "D-Bus",
+    "Type": "modifiedMedian"
+  }
+}
 ```
-    {
-    "Desc":
-        {
-            "Config" : "D-Bus",
-            "Type" : "modifiedMedian"
-        }
-    }
-```
+
 Sensors added this way can only use a set of restricted calculations. At this
 stage the only type supported is modifiedMedian.