Migrate to main branch.

See #1117.

Author: gregturn

CI.adoc

@@ -1,6 +1,6 @@
 = Continuous Integration
 
-image:https://jenkins.spring.io/buildStatus/icon?job=spring-data-couchbase%2Fmaster&subject=Moore%20(master)["Spring Data Couchbase", link="https://jenkins.spring
+image:https://jenkins.spring.io/buildStatus/icon?job=spring-data-couchbase%2Fmain&subject=Moore%20(main)["Spring Data Couchbase", link="https://jenkins.spring
 .io/view/SpringData/job/spring-data-couchbase/"]
 image:https://jenkins.spring.io/buildStatus/icon?job=spring-data-couchbase%2F3.1.x&subject=Lovelace%20(3.1.x)["Spring Data Couchbase", link="https://jenkins.spring
 .io/view/SpringData/job/spring-data-couchbase/"]

CONTRIBUTING.adoc

@@ -1,3 +1,3 @@
 = Spring Data contribution guidelines
 
-You find the contribution guidelines for Spring Data projects https://github.com/spring-projects/spring-data-build/blob/master/CONTRIBUTING.adoc[here].
+You find the contribution guidelines for Spring Data projects https://github.com/spring-projects/spring-data-build/blob/main/CONTRIBUTING.adoc[here].

Jenkinsfile

@@ -3,7 +3,7 @@ pipeline {
 
 	triggers {
 		pollSCM 'H/10 * * * *'
-		upstream(upstreamProjects: "spring-data-commons/master", threshold: hudson.model.Result.SUCCESS)
+		upstream(upstreamProjects: "spring-data-commons/main", threshold: hudson.model.Result.SUCCESS)
 	}
 
 	options {
@@ -15,7 +15,7 @@ pipeline {
 		stage("test: baseline (jdk8)") {
 			when {
 				anyOf {
-					branch 'master'
+					branch 'main'
 					not { triggeredBy 'UpstreamCause' }
 				}
 			}
@@ -44,7 +44,7 @@ pipeline {
 		stage("Test other configurations") {
 			when {
 				allOf {
-					branch 'master'
+					branch 'main'
 					not { triggeredBy 'UpstreamCause' }
 				}
 			}
@@ -100,7 +100,7 @@ pipeline {
 		stage('Release to artifactory') {
 			when {
 				anyOf {
-					branch 'master'
+					branch 'main'
 					not { triggeredBy 'UpstreamCause' }
 				}
 			}
@@ -133,7 +133,7 @@ pipeline {
 
 		stage('Publish documentation') {
 			when {
-				branch 'master'
+				branch 'main'
 			}
 			agent {
 				label 'data'

README.adoc

@@ -1,6 +1,6 @@
 image:https://spring.io/badges/spring-data-couchbase/ga.svg[Spring Data Couchbase,link=https://projects.spring.io/spring-data-couchbase#quick-start] image:https://spring.io/badges/spring-data-couchbase/snapshot.svg[Spring Data Couchbase,link=https://projects.spring.io/spring-data-couchbase#quick-start]
 
-= Spring Data Couchbase image:https://jenkins.spring.io/buildStatus/icon?job=spring-data-couchbase%2Fmaster&subject=Build[link=https://jenkins.spring.io/view/SpringData/job/spring-data-couchbase/] https://gitter.im/spring-projects/spring-data[image:https://badges.gitter.im/spring-projects/spring-data.svg[Gitter]]
+= Spring Data Couchbase image:https://jenkins.spring.io/buildStatus/icon?job=spring-data-couchbase%2Fmain&subject=Build[link=https://jenkins.spring.io/view/SpringData/job/spring-data-couchbase/] https://gitter.im/spring-projects/spring-data[image:https://badges.gitter.im/spring-projects/spring-data.svg[Gitter]]
 
 The primary goal of the https://www.springsource.org/spring-data[Spring Data] project is to make it easier to build
 Spring-powered applications that use new data access technologies such as non-relational databases, map-reduce