Update README.md

[keigohtr]

What is this PR for?

To accelerate expanding Rekcurd, we need to update our installation manual.

[codecov-io]

Codecov Report

Merging #22 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master      #22   +/-   ##
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  Coverage   87.46%   87.46%           
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  Files          16       16           
  Lines        1037     1037           
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  Hits          907      907           
  Misses        130      130

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[yuki-mt]

I have the same suggestion as this comment ( rekcurd/dockerfiles#2 (comment) ) about writing code in drucker-example repository on README

[keigohtr]

@yuki-mt Thank you!
I have removed the redundant info. Could you check it again please?

[yuki-mt]

@keigohtr

Sorry for overlooking, but it looks that template directory is also very similar to drucker-example.
I guess we can use drucker-example code as template and should remote template directory.
Do you agree?

[keigohtr]

I am using template for debugging but it's OK.
I have removed.

[yuki-mt]

LGTM!