More README tweaks.

[ci skip]

README.md

@@ -296,10 +296,10 @@ integration tests against a running instance of Redis (>= 2.4.0 is required) to
 behaviour of the implementation of each command and automatically skips commands not defined in the
 specified Redis profile. If you do not have Redis up and running, integration tests can be disabled.
 By default the test suite is configured to execute integration tests using the profile for Redis 2.6
-(which is the current stable version of Redis) but can optionally target a Redis instance built from
-the `unstable` branch by modifying `phpunit.xml` and setting `REDIS_SERVER_VERSION` to `dev` so that
-the development server profile will be used. You can refer to [the tests README](tests/README.md)
-for more detailed information about testing Predis.
+but can optionally target a Redis instance built from `2.8` or `unstable` branches by modifying the
+`phpunit.xml` file and setting `REDIS_SERVER_VERSION` respectively to `2.8` or `dev` so that the
+correct server profile will be used. You can refer to [the tests README](tests/README.md) for more
+detailed information about testing Predis.
 
 Predis uses Travis CI for continuous integration and the history for past and current builds can be
 found [on its project page](http://travis-ci.org/nrk/predis).