diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000000000000000000000000000000000000..86322cb953a910a3a13d57eaf099327f41919590
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,4 @@
+target/
+*.iml
+.idea
+.DS_Store
diff --git a/README.md b/README.md
index 4f0bf5f4e80c3da42b17ad6e352eca007f168a0c..f233acacb346fefa570316da7a795f6d55673502 100644
--- a/README.md
+++ b/README.md
@@ -14,12 +14,13 @@ The code uses two lexicons for sentiment computation:
 
 Please cite one of the following two papers:
 
-   Minqing Hu and Bing Liu(2004). Mining and Summarizing Customer Reviews. Proceedings of
-   the ACM SIGKDD International Conference on Knowledge Discovery and Data Mining
-   (KDD-2004), Aug 22-25, 2004, Seattle, Washington, USA.
+    Minqing Hu and Bing Liu(2004). Mining and Summarizing Customer Reviews.
+    Proceedings of the ACM SIGKDD International Conference on Knowledge Discovery and Data Mining
+    (KDD-2004), Aug 22-25, 2004, Seattle, Washington, USA.
 
-   Bing Liu, Minqing Hu and Junsheng Cheng (2005). Opinion Observer: Analyzing and Comparing Opinions on the Web.
-   Proceedings of the 14th International World Wide Web conference (WWW-2005), May 10-14, 2005, Chiba, Japan.
+	Bing Liu, Minqing Hu and Junsheng Cheng (2005). Opinion Observer: Analyzing and
+	Comparing Opinions on the Web. Proceedings of the 14th International World Wide Web conference
+	(WWW-2005), May 10-14, 2005, Chiba, Japan.
 
 2) MPQA lexicon