fix Doc Replenish at go version && dlrover cmd

[SchopenhauerZhang]

##955

1、examples/pytorch/mnist/elastic_debug_job.yaml chang to examples/pytorch/mnist/elastic_job.yaml;
elastic_debug_job.yaml not exist！
2、go at least 1.18 or later

$ make deploy IMG=easydl/elasticjob-controller:master
/root/dlrover-0.3.1/dlrover/go/operator/bin/controller-gen rbac:roleName=manager-role crd webhook paths="./..." output:crd:artifacts:config=config/crd/bases
Error: err: exit status 1: stderr: go: updates to go.mod needed; to update it:
        go mod tidy
$ go mod tidy
go mod tidy: go.mod file indicates go 1.18, but maximum supported version is 1.17

so go at least 1.18 ; like go 1.21.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (65478b9) 78.73% compared to head (4253528) 78.71%.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #956      +/-   ##
==========================================
- Coverage   78.73%   78.71%   -0.02%     
==========================================
  Files         180      180              
  Lines       16313    16313              
==========================================
- Hits        12844    12841       -3     
- Misses       3469     3472       +3     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[workingloong]

LGTM! Thanks for your modification!