docs: update

Makefile

@@ -25,7 +25,7 @@ build-unix:
 	$(shell export GOOS=$(GOOS); export GOARCH=$(GOARCH); go build ${LDFLAGS} -o dist/$(PROJ)_$(VERSION)_$(GOOS)_$(GOARCH)/$(PROJ))))
 
 build-win:
-	$(shell export GOOS=windows; export GOARCH=arm64; go build ${LDFLAGS} -o dist/$(PROJ)_$(VERSION)_windows_arm64/$(PROJ).exe)
+	$(shell export GOOS=windows; export GOARCH=amd64; go build ${LDFLAGS} -o dist/$(PROJ)_$(VERSION)_windows_amd64/$(PROJ).exe)
 
 build-mac-m1:
 	$(shell export GOOS=darwin; export GOARCH=arm64; go build ${LDFLAGS} -o dist/$(PROJ)_$(VERSION)_darwin_arm64/$(PROJ))

README.md

@@ -19,16 +19,20 @@ Available Commands:
 Flags:
   -a, --all           show local ip
   -c, --cell          show cell, must used with --list
+      --cron          run as cron service
   -h, --help          help for myip
   -u, --host string   hostname to connect (default "kumoly.io")
   -l, --list          show list
+  -n, --name string   tell the server who you are
       --no-pub        disable PublicIP
   -p, --port string   server port to connect (default "5080")
       --secure        use https
+  -s, --spec string   hostname to connect (default "0 */5 * * * *")
   -t, --title         show title, used with --list
   -v, --version       version for myip
 
 Use "myip [command] --help" for more information about a command.
+
 ```
 
 ## Docker
@@ -40,6 +44,12 @@ docker pull hub.kumoly.io/tools/myip:latest
 docker run --name myip-server -d -p 5080:5080 --restart=always hub.kumoly.io/tools/myip
 ```
 
+Client:
+
+```shell
+docker pull hub.kumoly.io/tools/myip:latest
+docker run --name myip -d --restart=always hub.kumoly.io/tools/myip myip --cron --spec "@hourly"
+```
 
 ## Cron
 
@@ -52,6 +62,16 @@ Hours        | Yes        | 0-23            | * / , -
 Day of month | Yes        | 1-31            | * / , - ?
 Month        | Yes        | 1-12 or JAN-DEC | * / , -
 Day of week  | Yes        | 0-6 or SUN-SAT  | * / , - ?
+
+Entry                  | Description                                | Equivalent To
+-----                  | -----------                                | -------------
+@yearly (or @annually) | Run once a year, midnight, Jan. 1st        | 0 0 0 1 1 *
+@monthly               | Run once a month, midnight, first of month | 0 0 0 1 * *
+@weekly                | Run once a week, midnight between Sat/Sun  | 0 0 0 * * 0
+@daily (or @midnight)  | Run once a day, midnight                   | 0 0 0 * * *
+@hourly                | Run once an hour, beginning of hour        | 0 0 * * * *
+
+@every <duration>
 ```
 
 **Duration**: `myip -altc --cron --spec "@every 5m"`