docs(instances): add pop2-win instances to faq (#3707)

Author: bene2k1

faq/instances.mdx

@@ -114,6 +114,16 @@ You can change the storage type and flexible IP after the Instance creation, whi
 | ENT1-XL           | €2.35/hour             | €3.53/hour        |
 | ENT1-2XL          | €3.53/hour             | €5.29/hour        |
 
+**Production-Optimized Instances with Windows Server operating system**
+
+| Range             | Price for all regions* | Price for PAR3    |
+|-------------------|------------------------|-------------------|
+| POP2-2C-8G-WIN    | €0.1823/hour           | Not available     |
+| POP2-4C-16G-WIN   | €0.3637/hour           | Not available     |
+| POP2-8C-32G-WIN   | €0.7233/hour           | Not available     |
+| POP2-16C-64G-WIN  | €1.4567/hour           | Not available     |
+| POP2-32C-128-WIN  | €2.9133/hour           | Not available    |
+
 **Workload-Optimized Instances**
 
 | Range             | Price for all regions* | Price for PAR3    |