nmbug: Update clone instructions for v0.18

With notmuch v0.18 the nmbug repository format changed and we gained a
clone command [1,2].  Add a link to the live nmbug version, so it's
easier for folks to download nmbug independently from notmuch.

[1]: c200167 (nmbug: Add 'clone' and replace FETCH_HEAD with
     @{upstream}, 2014-03-09)
[2]: 512ffe3 (NEWS: Document the recent 'nmbug clone' and @{upstream}
     changes, 2014-04-15)

1 files changed, 5 insertions, 3 deletions

diff --git a/nmbug.mdwn b/nmbug.mdwn
index 764473b..b3a6e7a 100644
--- a/nmbug.mdwn
+++ b/nmbug.mdwn
@@ -7,16 +7,16 @@ There is a dump of (some views of) the nmbug [[status|http://nmbug.tethera.net/s
 
 ## Getting started
 
-1. Install and use notmuch version **0.10** or newer and
+1. Install and use nmbug from notmuch version **0.18** or newer and
    perl module `Pod::Usage` (packaged as `perl-doc` in debian).
 
-   The nmbug script is available in `devel/nmbug`.
+   The nmbug script is available in [devel/nmbug][nmbug].
 
 2. Make sure your `git version` is **1.7.4** or newer. 
 
 3. Enter the following command to obtain the current tag repository:
 
-   `$ git clone --bare http://nmbug.tethera.net/git/nmbug-tags.git $HOME/.nmbug`
+   `$ nmbug clone http://nmbug.tethera.net/git/nmbug-tags.git`
 
 ## Using nmbug, simple example
 
@@ -178,3 +178,5 @@ The `%25` represents hex code for a character that cannot be used directly
 
 - Currently the parser of nmbug (like that of notmuch restore) assumes
   that there are no spaces in message-ids.
+
+[nmbug]: http://git.notmuchmail.org/git/notmuch/blob/HEAD:/devel/nmbug/nmbug