KYLIN-4308 Make kylin.sh tips clearer and more explicit

[weibin0516]

No description provided.

[asf-ci]

Can one of the admins verify this patch?

[asf-ci]

Can one of the admins verify this patch?

[codecov-io]

Codecov Report

Merging #1011 into master will increase coverage by <.01%.
The diff coverage is n/a.

@@             Coverage Diff             @@
##             master   #1011      +/-   ##
===========================================
+ Coverage      25.5%   25.5%   +<.01%     
  Complexity     6177    6177              
===========================================
  Files          1416    1416              
  Lines         85967   85967              
  Branches      12059   12059              
===========================================
+ Hits          21927   21929       +2     
+ Misses        61902   61900       -2     
  Partials       2138    2138

Impacted Files	Coverage Δ	Complexity Δ
...he/kylin/job/impl/threadpool/DefaultScheduler.java	76.74% <0%> (+2.32%)	12% <0%> (ø)	⬇️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update bb839ff...0098cfd. Read the comment docs.

[nichunen]

LGTM