update docs

docs/30_Usage.md

@@ -31,7 +31,7 @@ certificate must be created, renewed or re-created.
 
 SYNTAX:
 
-    dev_cm.sh [OPTIONS] ACTION <FQDN> [<ALIASES>]
+    cm.sh [OPTIONS] ACTION <FQDN> [<ALIASES>]
 
 OPTIONS:
 
@@ -62,7 +62,7 @@ The ACTIONs for SINGLE certificate handlings are:
         The first FQDN is a hostname to generate the certificate for. 
         Following multiple hostnames will be used as DNS aliases in the 
         same certificate.
-        It updates files in 
+        It updates files in ./certs
 
     ensure <FQDN> [.. <FQDN-N>] 
         It ensures that a certificate with given aliases exists and is up to date.
@@ -81,7 +81,7 @@ The ACTIONs for SINGLE certificate handlings are:
 
     renew <FQDN>
         renew (an already added) certificate
-        and update files in 
+        and update files in ./certs
 
     show <FQDN>
         show place of certificate data and show basic certificate data
@@ -105,7 +105,7 @@ ACTIONs for ALL certs
 
     renew-all
         renew all certificates (fast mode - without --force)
-        and update files in 
+        and update files in ./certs
         It is useful for a cronjob.
 
 other ACTIONs