Fix ccache types list format

docs/docs/kerberos-access.md

@@ -146,9 +146,10 @@ Once you can get TGTs from the CERN realm <a href="#try">as described above</a>,
 In case you need to access different realms at the same time, you can take advantage of the [credential cache collection feature](https://web.mit.edu/kerberos/krb5-1.12/doc/basic/ccache_def.html#collections-of-caches) of the MIT Kerberos client.
 
 To do so, one of these credential cache types is required:
-- `DIR` (version 1.10)
-- `KEYRING` (version 1.12)
-- `KCM` (version 1.13)
+
+* `DIR` (version 1.10)
+* `KEYRING` (version 1.12)
+* `KCM` (version 1.13)
 
 Be sure to check the version of you Kerberos client before choosing:
 ```bash