README: Bump library version to 0.1.3.

Change-Id: Ib19fb5aed31b9a39e3fda56a7f58aff3c95388e4
diff --git a/README.md b/README.md
index 6ba03ee..7671374 100644
--- a/README.md
+++ b/README.md
@@ -44,7 +44,7 @@
         <dependency>
           <groupId>eu.mulk.jgvariant</groupId>
           <artifactId>jgvariant-core</artifactId>
-          <version>0.1.0</version>
+          <version>0.1.3</version>
         </dependency>
     
         ...
@@ -59,7 +59,7 @@
     dependencies {
       ...
     
-      implementation("eu.mulk.jgvariant:jgvariant-core:0.1.0")
+      implementation("eu.mulk.jgvariant:jgvariant-core:0.1.3")
     
       ...
     }