fix ca creation command and file name update

refresh-NebulaCA

@@ -107,7 +107,7 @@ DATETIME=$(date '+%Y%m%d-%H%M%S')
 CERTISCASTATUS=$(${ROOTPATH}/nebula-cert print -path ${ROOTPATH}/${CAFILENAME} -json | jq -s --compact-output .[].details.isCa)
 
 # Create new file name variable
-NEWFILENAME="${CANAME}_${DATETIME}"
+NEWFILENAME="${CANAME}-CA_${DATETIME}"
 
 if [[ $CERTISCASTATUS == false ]]; then
     echo "Certificate is a Node Certificate. Try again by providing the CA Certificate."
@@ -125,7 +125,7 @@ if [[ $CERTISCASTATUS == true ]]; then
     echo "~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~"
     try
     (
-        ${ROOTPATH}/nebula-cert sign -name ${CANAME} -out-crt ${ROOTPATH}/${NEWFILENAME}.crt -out-key ${ROOTPATH}/${NEWFILENAME}.key
+        ${ROOTPATH}/nebula-cert ca -name ${CANAME} -out-crt ${ROOTPATH}/${NEWFILENAME}.crt -out-key ${ROOTPATH}/${NEWFILENAME}.key
     )
     catch || {
         help_msg