Server-Installation.md

@@ -8,6 +8,11 @@
 
 ### Step 3: Create an empty mysql database
 
+### Step 4: Get a HTTPS certificate or create a self-signed one
+The communication between the server and client will be HTTPS-encrypted so you will need a certificate for the server.
+
+### Step 5: Create a Java Keystore holding your certificate
+[How to create a keystore from a certificate](https://github.com/deadlocker8/BudgetMaster/wiki/HTTPS)
 
 ### Step 4: Fill in your settings into settings.json