Fix README typo: Existance->Existence
@@ -90,7 +90,7 @@ they have the legal right to submit the code. This is achieved by adding a line
Signed-off-by: Real Name <email@address.com>
-to the bottom of every commit message. Existance of such a line certifies
+to the bottom of every commit message. Existence of such a line certifies
that the submitter has complied with the Developer's Certificate of Origin 1.1,
(as defined in the file docs/developer-certificate-of-origin).
