Update README.md

Author: maddie

README.md

@@ -108,6 +108,7 @@ GLOBAL OPTIONS:
    --ipv6, -6                     Force IPv6 only (default: false)
    --no-download                  Do not perform download test (default: false)
    --no-upload                    Do not perform upload test (default: false)
+   --concurrent value             Concurrent HTTP requests being made (default: 3)
    --bytes                        Display values in bytes instead of bits. Does not affect
                                   the image generated by --share, nor output from
                                   --json or --csv (default: false)
@@ -144,13 +145,14 @@ GLOBAL OPTIONS:
                                   option to avoid out of memory errors (default: false)
    --telemetry-json value         Load telemetry server settings from a JSON file. This
                                   options overrides --telemetry-level, --telemetry-server,
-                                  --telemetry-path, and --telemetry-share
+                                  --telemetry-path, and --telemetry-share. Implies --share
    --telemetry-level value        Set telemetry data verbosity, available values are:
-                                  disabled, basic, full, debug
-   --telemetry-server value       Set the telemetry server base URL
-   --telemetry-path value         Set the telemetry upload path
-   --telemetry-share value        Set the telemetry share link path
-   --telemetry-extra value        Send a custom message along with the telemetry results
+                                  disabled, basic, full, debug. Implies --share
+   --telemetry-server value       Set the telemetry server base URL. Implies --share
+   --telemetry-path value         Set the telemetry upload path. Implies --share
+   --telemetry-share value        Set the telemetry share link path. Implies --share
+   --telemetry-extra value        Send a custom message along with the telemetry results.
+                                  Implies --share
 ```
 
 ## Use a custom backend server list