update subcommand curl docs

docs/cmd/hrp_convert_curl.md

@@ -0,0 +1,26 @@
+## hrp convert curl
+
+convert curl command(s) to httprunner testcase
+
+```
+hrp convert curl URLs [flags]
+```
+
+### Options
+
+```
+  -b, --cookie strings   -b, --cookie in curl
+  -d, --data strings     -d, --data in curl
+  -F, --form strings     -F, --form in curl
+  -G, --get              -G, --get in curl
+  -I, --head             -I, --head in curl
+  -H, --header strings   -H, --header in curl
+  -h, --help             help for curl
+  -X, --request string   -X, --request in curl
+```
+
+### SEE ALSO
+
+* [hrp convert](hrp_convert.md)	 - convert to JSON/YAML/gotest/pytest testcases
+
+###### Auto generated by spf13/cobra on 6-Jul-2022