Update the README.md

[ferdianjovan]

Change roslaunch mongodb_store datacentre.launch to roslaunch mongodb_store mongodb_store.launch Change /opt/strands/strands_catkin_ws/src/strands_utils/mongodb_store/defaults/twitter_params.yaml to /opt/strands/strands_catkin_ws/src/strands_deployment/strands_parameters/defaults/twitter_params.yaml

[cdondrup]

The example format looks weird because it uses <> commands. Try using the code environment like this:

       twitter:
           appKey: '<ConsumerKey>'
           appSecret: '<ConsumerSecret>'
           oauthToken: '<AccessToken>'
           oauthTokenSecret: '<AccessTokenSecret>'

That is:

``` twitter stuff ```

[ferdianjovan]

Yeah you are right. I completely forgot to preview what I wrote.

[cdondrup]

Looks good now. Thanks.