Git ignore and readme

Author: ltamaster

.gitignore

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+# Created by https://www.gitignore.io/api/java,gradle
+
+
+### Gradle ###
+.gradle
+.idea
+/build/
+
+# Ignore Gradle GUI config
+gradle-app.setting
+
+# Avoid ignoring Gradle wrapper jar file (.jar files are usually ignored)
+!gradle-wrapper.jar
+
+# Cache of project
+.gradletasknamecache
+
+# # Work around https://youtrack.jetbrains.com/issue/IDEA-116898
+# gradle/wrapper/gradle-wrapper.properties
+
+# End of https://www.gitignore.io/api/java,gradle

README.md

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+## YAML Text Source
+
+A resource model source configured with static yaml text
+
+## Build
+
+```
+gradle clean build
+```
+
+## Install
+
+```
+cp build/libs/yaml-test-source.X.Y.Z.zip $RDECK_BASE/libext
+```
+