fix typo and naming convention

svn:r19377

doc/contrib/authority-policy.txt

@@ -30,8 +30,8 @@
    o Availability:
      - Must be available to upgrade within a few days in most cases.
        (While we're still developing Tor, we periodically find bugs that
-       impact the whole network and require dirserver upgrades.)
+       impact the whole network and require authority upgrades.)
-     - Should be have a well-known way to contact the administrator
+     - Should have a well-known way to contact the administrator
        via PGP-encrypted message.
 
    o Integrity:
@@ -46,14 +46,14 @@
 
    o Diversity
      - We should avoid situations that make it likelier for multiple
-       dirserver failures to happen at the same time.  Therefore...
+       authority failures to happen at the same time.  Therefore...
-       - It's good when dirservers are not all in the same country.
+       - It's good when authorities are not all in the same country.
-       - It's good when dirservers are not all in the same jurisdictions.
+       - It's good when authorities are not all in the same jurisdictions.
-       - It's good when dirservers are not all running the same OS.
+       - It's good when authorities are not all running the same OS.
-       - It's good when dirservers are not all using the same ISP.
+       - It's good when authorities are not all using the same ISP.
-       - It's good when dirservers are not all running the same
+       - It's good when authorities are not all running the same
          version of Tor.
-       - No two dirservers should have the same operator.
+       - No two authorities should have the same operator.
      - Maximal diversity, however, is not always practical.  Sometimes,
        for example, there is only one version of Tor that provides a
        given consensus generation algorithm.