fix markup in README.md

README.md

@@ -1,6 +1,6 @@
 This is a wrapper around dput that checks for various silly mistakes I
-have a tendency to make, e.g. forgetting to tag ppa uploads with ~ppa
-in the version or uploading foo_1.2.3-1ubunut1~16.04 to zesty.
+have a tendency to make, e.g. forgetting to tag ppa uploads with \~ppa
+in the version or uploading foo_1.2.3-1ubunut1\~16.04 to zesty.
 
 I might investigate integrating this into dput-ng at some point.
 
@@ -11,4 +11,4 @@ mwhudson@aeglos:/opt/opensource/deb/docker$ dput-wrap.pl docker.io_1.13.1-0ubunt
 no [~+]16.04 in version for upload targeting xenial, found ~17.04 though
 mwhudson@aeglos:/opt/opensource/deb/docker$ dput-wrap.pl runc_1.0.0~rc2+docker1.12.6-0ubuntu1~16.04.1_source.changes
 bug 1675288 has task for xenial/runc with unsuitable status Fix Released
-```
+```