Added more companies documentation

docs/companies/customer.md

@@ -4,7 +4,7 @@ title: Customers
 
 ## Customers
 
-A customer is a client who parts are sold to.
+A customer is an external client to whom parts are sold.
 
 To access the customer page, click on the "Sell" navigation tab and click on "Customers" option in the dropdown list.
 

docs/companies/manufacturer.md

@@ -4,14 +4,16 @@ title: Manufacturers
 
 ## Manufacturers
 
-A supplier is an external vendor of parts and raw materials.
+A manufacturer is an external **producer** of parts and raw materials.
 
-To access the supplier page, click on the "Buy" navigation tab and click on "Manufacturers" option in the dropdown list.
+To access the manufacturer page, click on the "Buy" navigation tab and click on "Manufacturers" option in the dropdown list.
 
 ### Add Manufacturer
 
-!!! missing "TODO"
+Once the manufacturer page is loaded, click on the "New Manufacturer" button: the "Create new Manufacturer" form opens. Fill-in the manufacturer informations (`Company name` and `Company description` are required) and click on "Submit".
-	This section requires further work
+
+!!! note "Manufacturer vs Supplier"
+	In the case the manufacturer sells directly to customers, you may want to enable the checkbox `is supplier` before submitting the form (you can also enable it later on). Purchase orders rely exclusively on [supplier parts](../supplier#supplier-parts), therefore the manufacturer will need to be set as a supplier too.
 
 ### Edit Manufacturer
 
@@ -20,7 +22,7 @@ To access the supplier page, click on the "Buy" navigation tab and click on "Man
 
 ## Manufacturer Parts
 
-Manufacturer parts are linked to a manufacturer and supplier part: they are the "items" sold by a supplier.
+Manufacturer parts are linked to a manufacturer and supplier part: they are the actual "items" sold by a supplier.
 
 ### Add Manufacturer Part
 

docs/companies/po.md

@@ -4,6 +4,8 @@ title: Purchase Order
 
 ## Purchase Orders
 
+To access the purchase order page, click on the "Buy" navigation tab and click on "Purchase Orders" option in the dropdown list.
+
 !!! missing "TODO"
 	This section requires further work
 

docs/companies/so.md

@@ -4,6 +4,8 @@ title: Sales Order
 
 ## Sales Orders
 
+To access the sales order page, click on the "Sell" navigation tab and click on "Sales Orders" option in the dropdown list.
+
 !!! missing "TODO"
 	This section requires further work
 

docs/companies/supplier.md

@@ -4,7 +4,7 @@ title: Suppliers
 
 ## Suppliers
 
-A supplier is an external vendor of parts and raw materials.
+A supplier is an external **vendor** of parts and raw materials.
 
 To access the supplier page, click on the "Buy" navigation tab and click on "Suppliers" option in the dropdown list.