Update spring.io project urls.

This commit updates outdated projects.spring.io links to spring.io/projects.

Closes: #4042

Author: nniesen

README.adoc

@@ -1,8 +1,8 @@
-image:https://spring.io/badges/spring-data-mongodb/ga.svg[Spring Data MongoDB,link=https://projects.spring.io/spring-data-mongodb#quick-start] image:https://spring.io/badges/spring-data-mongodb/snapshot.svg[Spring Data MongoDB,link=https://projects.spring.io/spring-data-mongodb#quick-start]
+image:https://spring.io/badges/spring-data-mongodb/ga.svg[Spring Data MongoDB,link=https://spring.io/projects/spring-data-mongodb#quick-start] image:https://spring.io/badges/spring-data-mongodb/snapshot.svg[Spring Data MongoDB,link=https://spring.io/projects/spring-data-mongodb#quick-start]
 
 = Spring Data MongoDB image:https://jenkins.spring.io/buildStatus/icon?job=spring-data-mongodb%2Fmain&subject=Build[link=https://jenkins.spring.io/view/SpringData/job/spring-data-mongodb/] https://gitter.im/spring-projects/spring-data[image:https://badges.gitter.im/spring-projects/spring-data.svg[Gitter]]
 
-The primary goal of the https://projects.spring.io/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 frameworks, and cloud based data services.
+The primary goal of the https://spring.io/projects/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 frameworks, and cloud based data services.
 
 The Spring Data MongoDB project aims to provide a familiar and consistent Spring-based programming model for new datastores while retaining store-specific features and capabilities.
 The Spring Data MongoDB project provides integration with the MongoDB document database.

pom.xml

@@ -10,7 +10,7 @@
 
 	<name>Spring Data MongoDB</name>
 	<description>MongoDB support for Spring Data</description>
-	<url>https://projects.spring.io/spring-data-mongodb</url>
+	<url>https://spring.io/projects/spring-data-mongodb</url>
 
 	<parent>
 		<groupId>org.springframework.data.build</groupId>

src/main/asciidoc/preface.adoc

@@ -115,4 +115,4 @@ Professional Support :: Professional, from-the-source support, with guaranteed r
 [[get-started:up-to-date]]
 == Following Development
 
-For information on the Spring Data Mongo source code repository, nightly builds, and snapshot artifacts, see the Spring Data Mongo https://projects.spring.io/spring-data-mongodb/[homepage]. You can help make Spring Data best serve the needs of the Spring community by interacting with developers through the Community on https://stackoverflow.com/questions/tagged/spring-data[Stack Overflow]. To follow developer activity, look for the mailing list information on the Spring Data Mongo https://projects.spring.io/spring-data-mongodb/[homepage]. If you encounter a bug or want to suggest an improvement, please create a ticket on the Spring Data https://github.com/spring-projects/spring-data-mongodb/issues[issue tracker]. To stay up to date with the latest news and announcements in the Spring eco system, subscribe to the Spring Community https://spring.io[Portal]. You can also follow the Spring https://spring.io/blog[blog] or the project team on Twitter (https://twitter.com/SpringData[SpringData]).
+For information on the Spring Data Mongo source code repository, nightly builds, and snapshot artifacts, see the Spring Data Mongo https://spring.io/projects/spring-data-mongodb/[homepage]. You can help make Spring Data best serve the needs of the Spring community by interacting with developers through the Community on https://stackoverflow.com/questions/tagged/spring-data[Stack Overflow]. To follow developer activity, look for the mailing list information on the Spring Data Mongo https://spring.io/projects/spring-data-mongodb/[homepage]. If you encounter a bug or want to suggest an improvement, please create a ticket on the Spring Data https://github.com/spring-projects/spring-data-mongodb/issues[issue tracker]. To stay up to date with the latest news and announcements in the Spring eco system, subscribe to the Spring Community https://spring.io[Portal]. You can also follow the Spring https://spring.io/blog[blog] or the project team on Twitter (https://twitter.com/SpringData[SpringData]).

src/main/asciidoc/reference/mapping.adoc

@@ -162,7 +162,7 @@ calling `get()` before the actual conversion
 
 | `URL`
 | converter
-| `{"website" : "https://projects.spring.io/spring-data-mongodb/" }`
+| `{"website" : "https://spring.io/projects/spring-data-mongodb/" }`
 
 | `Locale`
 | converter