README.md: Fix some wording.
diff --git a/README.md b/README.md
index 7b9bc1d..7b26efb 100644
--- a/README.md
+++ b/README.md
@@ -65,7 +65,7 @@ directory which implements a conversion utility from Markdown to HTML.
### CommonMark Specification
-The goal is be compliant to the latest version of
+The goal is to become compliant to the latest version of
[CommonMark specification](http://spec.commonmark.org/).
The list below corresponds to chapters of the specification version 0.27 and