Obvious quick fixes:

- extra 'the' in intro_inventory
- capitalization in playbooks_roles

docsite/rst/intro_inventory.rst

@@ -142,7 +142,7 @@ Splitting Out Host and Group Specific Data
 
 The preferred practice in Ansible is actually not to store variables in the main inventory file.
 
-In addition to the storing variables directly in the INI file, host
+In addition to storing variables directly in the INI file, host
 and group variables can be stored in individual files relative to the
 inventory file.  
 

docsite/rst/playbooks_roles.rst

@@ -210,7 +210,7 @@ If any files are not present, they are just ignored.  So it's ok to not have a '
 for instance.
 
 Note, you are still allowed to list tasks, vars_files, and handlers "loose" in playbooks without using roles,
-but roles are a good organizational feature and are highly recommended.  if there are loose things in the playbook,
+but roles are a good organizational feature and are highly recommended.  If there are loose things in the playbook,
 the roles are evaluated first.
 
 Also, should you wish to parameterize roles, by adding variables, you can do so, like this::