[docs] updated toc and added projects docs

docs/user/hr/docs.user.hr.attendance.md

@@ -0,0 +1,6 @@
+---
+{
+	"_label": "Attendance"
+}
+---
+

docs/user/hr/docs.user.hr.expense_claim.md

@@ -21,4 +21,4 @@ Comments can be added in the Comments section explaining why the claim was appro
 
 ### Booking the Expense and Reimbursement
 
-The approved Expense Claim must then be converted into a Journal Voucher and a payment must be made. Note: This amount should not be clubbed with Salary because the amount will then be taxable to the Employee.
+The approved Expense Claim must then be converted into a Journal Voucher and a payment must be made. Note: This amount should not be clubbed with Salary because the amount will then be taxable to the Employee.

docs/user/hr/docs.user.hr.leave.md

@@ -1,6 +1,6 @@
 ---
 {
-	"_label": "Leave and Attendance"
+	"_label": "Leave"
 }
 ---
 

docs/user/hr/docs.user.hr.md

@@ -1,6 +1,15 @@
 ---
 {
-	"_label": "Human Resource Management"
+	"_label": "Human Resource Management",
+	"_toc": [
+		"docs.user.hr.set-up",
+		"docs.user.hr.employee",
+		"docs.user.hr.leave",
+		"docs.user.hr.attendance",
+		"docs.user.hr.payroll",
+		"docs.user.hr.expense_claim",
+		"docs.user.hr.appraisal"		
+	]
 }
 ---
 The Human Resources (HR) Module covers the processes linked to managing a team of co-workers. Most important feature here is processing the payroll by using the Salary Manager to generate Salary Slips. Most countries have complex tax rules stating which expenses the company can make on behalf of the Employees. There are a set of rules for the company to deduct taxes and social security from employee payroll. ERPNext allows to accomodate all types of taxes and their calculation.