added way to display inventory vars for host to faq + some minor fixes/edits

docsite/rst/faq.rst

@@ -154,7 +154,15 @@ Ansible by default gathers "facts" about the machines under management, and thes
 
     ansible -m setup hostname
 
-This will print out a dictionary of all of the facts that are available for that particular host.
+This will print out a dictionary of all of the facts that are available for that particular host. You might want to pipe the output to a pager.
+
+.. _browse_inventory_vars:
+How do I see all the inventory vars defined for my host?
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+
+You can see the resulting vars you define in inventory running the following command::
+
+    ansible -m debug -a "var=hostvars['hostname']" localhost
 
 .. _host_loops:
 
@@ -208,7 +216,7 @@ Anyway, here's the trick::
     {{ hostvars[groups['webservers'][0]]['ansible_eth0']['ipv4']['address'] }}
 
 Notice how we're pulling out the hostname of the first machine of the webservers group.  If you are doing this in a template, you
-could use the Jinja2 '#set' directive to simplify this, or in a playbook, you could also use set_fact:
+could use the Jinja2 '#set' directive to simplify this, or in a playbook, you could also use set_fact::
 
     - set_fact: headnode={{ groups[['webservers'][0]] }}
 
@@ -310,6 +318,7 @@ The no_log attribute can also apply to an entire play::
 Though this will make the play somewhat difficult to debug.  It's recommended that this
 be applied to single tasks only, once a playbook is completed.   
 
+
 I don't see my question here
 ++++++++++++++++++++++++++++