Update README.md

- highlighting
- generic doc link for minor v2017.1.x

README.md

@@ -2,11 +2,13 @@
 
 Check out this repository and execute `make`, i.e. like this:
 
-    git clone https://github.com/freifunkMUC/site-ffm.git site-ffm
-    cd site-ffm
-    make
+```bash
+git clone https://github.com/freifunkMUC/site-ffm.git site-ffm
+cd site-ffm
+make
+```
 
 ## Further Resources
 
-Look at the [site configuration related Gluon documentation](https://gluon.readthedocs.io/en/v2016.2.3/user/site.html)
+Look at the [site configuration related Gluon documentation](https://gluon.readthedocs.io/en/v2017.1.x/user/site.html)
 for information on site configuration options and examples from other communities.