Fix example usage of -debug flag

The CLI changed and now wants the `-debug` flag to be passed with a boolean value. See SeleniumHQ/selenium@705be71.
SeleniumHQ · Mar 27, 2017 · 1ceb290 · 1ceb290
1 parent 5132571
commit 1ceb290
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/README.md b/README.md
@@ -67,7 +67,7 @@ $ docker run -d -p 4444:4444 -e JAVA_OPTS=-Xmx512m --name selenium-hub selenium/
 You can pass `SE_OPTS` variable with additional commandline parameters for starting a hub or a node.
 
 ``` bash
-$ docker run -d -p 4444:4444 -e SE_OPTS=-debug --name selenium-hub selenium/hub:3.2.0-actinium
+$ docker run -d -p 4444:4444 -e SE_OPTS="-debug true" --name selenium-hub selenium/hub:3.2.0-actinium
 ```
 
 ### PHANTOMJS_OPTS PhantomJS Configuration Options