Changes hyphens (-) to en dashes (typography)

refs #11599

diff --git a/doc/1-about.md b/doc/1-about.md
index b9d4e16cfc68e523cac0c2f9a95f49a741ebd1d2..04ab5f66c5f171f71805a9ff130866567286ec21 100644 (file)
--- a/doc/1-about.md
+++ b/doc/1-about.md
@@ -22,13 +22,13 @@ the [support overview page](https://support.icinga.org).
 
 ## <a id="contribute"></a> Contribute
 
-There are many ways to contribute to Icinga - whether it be sending patches,
+There are many ways to contribute to Icinga -- whether it be sending patches,
 testing, reporting bugs, or reviewing and updating the documentation. Every
 contribution is appreciated!
 
 Please get in touch with the Icinga team at https://www.icinga.org/community/.
 
-If you want to help update this documentation please read
+If you want to help update this documentation, please read
 [this howto](https://wiki.icinga.org/display/community/Update+the+Icinga+2+documentation).
 
 ### <a id="development-info"></a> Icinga 2 Development