fixed some markdown indentation errors/typos

README.md

@@ -426,7 +426,7 @@ Any non-empty responses are JSON formatted messages.
             }
         }
     }
-  ```
+    ```
 
 
 `opsdb:interface_services:<equipment name>:<interface name>`
@@ -542,7 +542,7 @@ Any non-empty responses are JSON formatted messages.
     * `opsdb:services:children:12363`
     * `opsdb:services:parents:14407`
   * value schema
-      TODO: this needs to be checked ...
+    TODO: this needs to be checked ...
     ```json
     {
         "$schema": "http://json-schema.org/draft-07/schema#",
@@ -593,6 +593,7 @@ Any non-empty responses are JSON formatted messages.
     * `alarmsdb:interface_status:Lab node 1:1-1/3`
     *  `alarmsdb:interface_status:mx1.ams.nl.geant.net:ae15.1500`
   * valid values:
+    TODO: verify these values
     * `unknown`
     * `up`
     * `down`
\ No newline at end of file