bump version to v0.20

Summary: Update doc/config and gradle.property to reflect new version

Reviewed By: mihaelao

Differential Revision: D10447025

fbshipit-source-id: f1f1c85f04f426e50dd422a0d55afff22c0703cd

docs/_config.yml

@@ -35,7 +35,7 @@ ghrepo: "facebook/litho"
 repository: "facebook/litho"
 
 # These can be used in documentation with e.g. {{site.litho-version}}
-litho-version: 0.19.0
+litho-version: 0.20.0
 litho-snapshot-version: 0.19.1-SNAPSHOT
 soloader-version: 0.5.1
 

gradle.properties

@@ -16,7 +16,7 @@
 
 # Project-wide Gradle settings.
 
-VERSION_NAME=0.19.1-SNAPSHOT
+VERSION_NAME=0.20.0
 GROUP=com.facebook.litho
 POM_URL=https://github.com/facebook/litho
 POM_SCM_URL=https://github.com/facebook/litho.git