Update syntax of encrypt-file in README.md

README.md

@@ -780,15 +780,20 @@ There are two ways the client can treat existing values:
             --skip-completion-check      don't check if auto-completion is set up
         -e, --api-endpoint URL           Travis API server to talk to
         -I, --[no-]insecure              do not verify SSL certificate of API endpoint
+            --pro                        short-cut for --api-endpoint 'https://api.travis-ci.com/'
             --com                        short-cut for --api-endpoint 'https://api.travis-ci.com/'
             --org                        short-cut for --api-endpoint 'https://api.travis-ci.org/'
+            --staging                    talks to staging system
         -t, --token [ACCESS_TOKEN]       access token to use
             --debug                      show API requests
+            --debug-http                 show HTTP(S) exchange
         -X, --enterprise [NAME]          use enterprise setup (optionally takes name for multiple setups)
+            --adapter ADAPTER            Faraday adapter to use for HTTP requests
         -r, --repo SLUG                  repository to use (will try to detect from current git clone)
         -R, --store-repo SLUG            like --repo, but remembers value for current directory
         -K, --key KEY                    encryption key to be used (randomly generated otherwise)
             --iv IV                      encryption IV to be used (randomly generated otherwise)
+            --env-prefix ENV_PREFIX      prefix of the names of the encryption key/IV environment variables (randomly generated otherwise)
         -d, --decrypt                    decrypt the file instead of encrypting it, requires key and iv
         -f, --force                      override output file if it exists
         -p, --print-key                  print (possibly generated) key and iv