Update README.md

Updating version to 3.1.1 to align with latest release.

Author: devondragon

README.md

@@ -72,14 +72,14 @@ Check out the [Spring User Framework Demo Application](https://github.com/devond
 <dependency>
     <groupId>com.digitalsanctuary</groupId>
     <artifactId>ds-spring-user-framework</artifactId>
-    <version>3.1.0</version>
+    <version>3.1.1</version>
 </dependency>
 ```
 
 ### Gradle
 
 ```groovy
-implementation 'com.digitalsanctuary:ds-spring-user-framework:3.1.0'
+implementation 'com.digitalsanctuary:ds-spring-user-framework:3.1.1'
 ```
 
 ## Quick Start