Doc update

Hasnain Virk · Hasnain Virk · commit 1d5c9f0dc4e3 · 2018-06-28T14:42:26.000+03:00
Removing COMMON_PAL reference from the doc.
diff --git a/README.md b/README.md
@@ -147,7 +147,6 @@ To enable Mbed trace, add to your `mbed_app.json` the following fields:
 ```json
     "target_overrides": {
         "*": {
-            "target.features_add": ["COMMON_PAL"],
             "mbed-trace.enable": true
             }
      }

Original file line number	Diff line number	Diff line change
@@ -147,7 +147,6 @@ To enable Mbed trace, add to your `mbed_app.json` the following fields:
`147`	`147`	```json
`148`	`148`	`"target_overrides": {`
`149`	`149`	`"*": {`
`150`		`- "target.features_add": ["COMMON_PAL"],`
`151`	`150`	`"mbed-trace.enable": true`
`152`	`151`	`}`
`153`	`152`	`}`