chore: release 0.3.1 (#36)

* updated CHANGELOG.md [ci skip]

* updated README.md [ci skip]

* updated versions.txt [ci skip]

* updated pom.xml [ci skip]

Co-authored-by: release-please[bot] <55107282+release-please[bot]@users.noreply.github.com>

Author: release-please[bot]

CHANGELOG.md

@@ -1,5 +1,17 @@
 # Changelog
 
+### [0.3.1](https://www.github.com/googleapis/java-shared-dependencies/compare/v0.3.0...v0.3.1) (2020-05-13)
+
+
+### Dependencies
+
+* update autovalue.version to v1.7.2 ([#35](https://www.github.com/googleapis/java-shared-dependencies/issues/35)) ([50a1511](https://www.github.com/googleapis/java-shared-dependencies/commit/50a1511a47362a2de5cce26de0f0fbd6ea31c7cb))
+
+
+### Documentation
+
+* update CONTRIBUTING.md to include code formatting ([#534](https://www.github.com/googleapis/java-shared-dependencies/issues/534)) ([#34](https://www.github.com/googleapis/java-shared-dependencies/issues/34)) ([c916354](https://www.github.com/googleapis/java-shared-dependencies/commit/c91635446a457e01aa38e2cc384d3fd5d43c1b3b))
+
 ## [0.3.0](https://www.github.com/googleapis/java-shared-dependencies/compare/v0.2.0...v0.3.0) (2020-05-05)
 
 

README.md

@@ -14,7 +14,7 @@ If you are using Maven, use this artifact as your project's parent.
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-shared-dependencies</artifactId>
-      <version>0.3.0</version>
+      <version>0.3.1</version>
       <type>pom</type>
       <scope>import</scope>
     </dependency>

pom.xml

@@ -4,7 +4,7 @@
   <groupId>com.google.cloud</groupId>
   <artifactId>google-cloud-shared-dependencies</artifactId>
   <packaging>pom</packaging>
-  <version>0.3.1-SNAPSHOT</version><!-- {x-version-update:google-cloud-shared-dependencies:current} -->
+  <version>0.3.1</version><!-- {x-version-update:google-cloud-shared-dependencies:current} -->
   <name>Google Cloud Shared Dependencies</name>
   <url>https://github.com/googleapis/java-shared-dependencies</url>
   <description>

versions.txt

@@ -1,4 +1,4 @@
 # Format:
 # module:released-version:current-version
 
-google-cloud-shared-dependencies:0.3.0:0.3.1-SNAPSHOT
+google-cloud-shared-dependencies:0.3.1:0.3.1