diff --git a/README.md b/README.md
index d7dedc84ccf84990034f40c7be4e824dca25d8fb..a1a87f6edd543c9695eca3aedbdf9ef8208a78dc 100644
--- a/README.md
+++ b/README.md
@@ -1 +1,13 @@
 # Sort Lines
+
+With this tool you can sort newline separated lines alphabetically.
+
+![Screenshot des Tools](screenshot.png)
+
+You can either push the button "Paste, Sort & Copy" where the clipboard content is used as content or fill in your lines into textarea and push the button "Sort & Copy". In both cases the sorted result will be put back to clipboard.
+
+If you leave the default option "output unique lines only" set all lines existing more then once are deleted.
+
+There are two shortcuts to access the tool:
+* 1: Paste, Sort & Copy
+* 2: Sort & Copy
diff --git a/screenshot.png b/screenshot.png
new file mode 100644
index 0000000000000000000000000000000000000000..1979d2d1f957aa6a7debc39977e51e5e13484d5a
Binary files /dev/null and b/screenshot.png differ