docs: specify a full URL, to make it clickable

Co-authored-by: Copilot <[email protected]>
Signed-off-by: Lindsay Holmwood <[email protected]>

Author: auxesis

DEVELOPMENT.md

@@ -37,7 +37,7 @@ CS_DEFAULT_KEYSET_ID = ""
 EOF
 
 # In your browser:
-#  - Sign in to dashboard.cipherstash.com
+#  - Sign in to https://dashboard.cipherstash.com
 #  - Create or select a workspace
 #  - Generate and copy the credentials to your clipboard