.gitignore in plagiarism-checker-2.1.2 vs .gitignore in plagiarism-checker-3.0.0

@@ -1,12 +1,8 @@
-/.bundle/
-/.yardoc
-/Gemfile.lock
-/_yardoc/
-/coverage/
-/doc/
-/pkg/
-/spec/reports/
-/tmp/
-.idea
-/README.md
-/examples/test.rb
+/.bundle/
+/.yardoc
+/_yardoc/
+/coverage/
+/doc/
+/pkg/
+/spec/reports/
+/tmp/