docs: update menu navigation notation to use *Menu > Menu Item*

Follow Apple's notation for 'Menus' from
http://help.apple.com/asg/mac/2013/#apsg1f285825 .

docs/setup.rst

@@ -171,7 +171,8 b' available via PyPI, so you can install i'
           your system, so before installing it check that you have at
           least the ``openldap`` and ``sasl`` libraries.
 
-LDAP settings are located in the Admin->LDAP section.
+Choose *Admin > Authentication*, click the ``kallithea.lib.auth_modules.auth_ldap`` button
+and then *Save*, to enable the LDAP plugin and configure its settings.
 
 Here's a typical LDAP setup::
 
@@ -486,8 +487,7 b' Hook management'
 ---------------
 
 Hooks can be managed in similar way to that used in ``.hgrc`` files.
-To access hooks setting click `advanced setup` in the `Hooks` section
-of Mercurial Settings in Admin.
+To manage hooks, choose *Admin > Settings > Hooks*.
 
 The built-in hooks cannot be modified, though they can be enabled or disabled in the *VCS* section.
 

docs/usage/email.rst

@@ -27,8 +27,8 b' Kallithea sends an email to `users` on s'
 - when they request a password reset
 
 Kallithea sends an email to all `administrators` upon new account registration.
-Administrators are users with the ``Admin`` flag set in the ``Admin->Users``
-section.
+Administrators are users with the ``Admin`` flag set on the *Admin > Users*
+page.
 
 When Kallithea wants to send an email but due to an error cannot correctly
 determine the intended recipients, the administrators and the addresses