Merge branch 'mm/docs' into 'main'

Add note about PKCS8 format in the README

See merge request fairdata/crdm-logging-setup!1

README.md

@@ -35,6 +35,10 @@ Of course, it can be desirable to use custom certificates (that aren't self-sign
 Such key pairs can be set by placing the corresponding files (`{cluster,dashboards}-{crt,key}.pem`) in the `ssl/` directory.  
 If the script detects that they exist as regular files (and not as symlinks), it will skip the auto-generation for these files and leave them as is.
 
+Note: It looks like the private key needs to be in PKCS#8 format.
+A key generated via `openssl genrsa` can be converted with the following command:
+`openssl pkcs8 -inform PEM -outform PEM -in PRIVATE_KEY_FILE.PEM -topk8 -nocrypt -v1 PBE-SHA1-3DES -out PRIVATE_KEY_PKCS8.PEM`
+
 
 ## Security configuration