Fix numbering of items in list of steps for Openshift deployment

The list continuation character '+' can be used to prevent a blank
line from ending a list, thereby allowing code blocks to be included
in a list. See "Complex content in outline lists" [1] for more
details.

[1] http://asciidoctor.org/docs/asciidoc-syntax-quick-reference/#lists

Fixes #1025

spring-boot-docs/src/main/asciidoc/cloud-deployment.adoc

@@ -236,7 +236,7 @@ that covers the steps that you need to follow when deploying to CloudBees.
 
 
 [[cloud-deployment-openshift]]
-=== Openshift
+== Openshift
 https://www.openshift.com/[Openshift] is the RedHat public (and enterprise) PaaS solution.
 Like Heroku, it works by running scripts triggered by git commits, so you can script
 the launching of a Spring Boot app in pretty much any way you like as long as the
@@ -250,23 +250,23 @@ The basic model is to:
 a `pre_build` hook (Java and Maven are installed by default, Gradle is not)
 
 2. Use a `build` hook to build your jar (using Maven or Gradle), e.g.
-
++
 ----
 #!/bin/bash
 cd $OPENSHIFT_REPO_DIR
 mvn package -s .openshift/settings.xml -DskipTests=true
 ----
-
++
 3. Add a `start` hook that calls `java -jar ...`
-
++
 ----
 #!/bin/bash
 cd $OPENSHIFT_REPO_DIR
 nohup java -jar target/*.jar --server.port=${OPENSHIFT_DIY_PORT} --server.address=${OPENSHIFT_DIY_IP} &
 ----
-
++
 4. Use a `stop` hook (since the start is supposed to return cleanly), e.g.
-
++
 ----
 #!/bin/bash
 source $OPENSHIFT_CARTRIDGE_SDK_BASH
@@ -278,10 +278,10 @@ else
     kill $PID
 fi
 ----
-
++
 5. Embed service bindings from environment variables provided by the platform
 in your `application.properties`, e.g.
-
++
 ----
 spring.datasource.url: jdbc:mysql://${OPENSHIFT_MYSQL_DB_HOST}:${OPENSHIFT_MYSQL_DB_PORT}/${OPENSHIFT_APP_NAME}
 spring.datasource.username: ${OPENSHIFT_MYSQL_DB_USERNAME}