Update README.md

Author: thomasnield

README.md

@@ -14,7 +14,7 @@ Extension functions like `select()`, `insert()`, and `execute()` will target bot
 <dependency>
   <groupId>org.nield</groupId>
   <artifactId>rxkotlin-jdbc</artifactId>
-  <version>0.3.2</version>
+  <version>0.3.1</version>
 </dependency>
 ```
 
@@ -25,7 +25,7 @@ repositories {
     mavenCentral()
 }
 dependencies {
-    compile 'org.nield:rxkotlin-jdbc:0.3.2'
+    compile 'org.nield:rxkotlin-jdbc:0.3.1'
 }
 ```