[IMP] payroll: contract doc for version 17

closes odoo/documentation#7529

Signed-off-by: Lara Martini (larm) <larm@odoo.com>

content/applications/hr/payroll.rst

@@ -98,6 +98,8 @@ In order for an employee to be paid, they **must** have an active contract for a
 employment. Creating and viewing contract templates, and creating and viewing employment types, is
 possible from this section of the configuration header menu.
 
+.. _payroll/contract-templates:
+
 Templates
 ---------
 
@@ -296,8 +298,8 @@ Unpaid section
 
 - :guilabel:`Unpaid in Structures Types`: if the work entry is for work that is not paid, specify
   which pay structure the unpaid work entry applies to from the drop-down menu. Some situations
-  where work would be logged on a timesheet but no compensation given would be for unpaid
-  internships, unpaid training, or volunteer work.
+  where work is logged on a timesheet, but no compensation given would be for unpaid internships,
+  unpaid training, or volunteer work.
 
 Valid for advantages section
 ****************************
@@ -420,6 +422,8 @@ paid by the hour, so the wage type is :guilabel:`Hourly Wage`.
    :align: center
    :alt: List of all currently configured structure types available to use.
 
+.. _payroll/new-structure-type:
+
 New structure type
 ~~~~~~~~~~~~~~~~~~
 
@@ -654,6 +658,8 @@ field.
    :align: center
    :alt: A new Input Type form filled in.
 
+.. _payroll/salary-attachment-types:
+
 Salary attachment types
 -----------------------
 
@@ -957,6 +963,6 @@ form.
    :titlesonly:
 
    payroll/contracts
-   payroll/payslips
    payroll/work_entries
+   payroll/payslips
    payroll/reporting