Edit README and include 2.6.2 release notes.

Author: jxblum

spring-session-data-geode/src/main/resources/changelog.txt

@@ -4,6 +4,23 @@ https://github.com/spring-projects/spring-session-data-geode
 ============================================================
 
 
+Changes in version 2.6.2 (2022-09-23)
+-------------------------------------
+Aligns Spring Session for Apache Geode (SSDG) with Spring Session (core) 2.6.3.
+
+* Upgrades to Spring Framework 5.3.23.
+* Upgrades to Spring Boot 2.6.12.
+* Upgrades to Spring Data BOM 2021.1.7 (Q-SR7).
+* Upgrades to Spring Data Commons 2.6.7.
+* Upgrades to Spring Data for Apache Geode 2.6.7.
+* Upgrades to Spring Security 5.6.7.
+* Upgrades to Spring Session 2.6.3.
+* Upgrades to Spring Session BOM 2021.1.3.
+* Upgrades to Spring Test for Apache Geode 0.2.3-Q.
+* Upgrades to Apache Log4j 2.19.0.
+* Upgrades to AssertJ 3.23.1.
+
+
 Changes in version 2.7.0 (2022-05-18)
 -------------------------------------
 Aligns Spring Session for Apache Geode (SSDG) with Spring Session (core) 2.7.0 GA.