modified example in README.md

[naman1303]

1. Changed the year from 2016 to 2020 (for exact 'planned' Olympics year)
2. Other minor changes

[naman1303]

I am doing this PR activity after a long time, so got confused while trying to compare the fork with master branch, thus you will see multiple commits - please ignore those.
I have executed the example go code before pushing my branch.

[codecov]

Codecov Report

Merging #70 (06e7b92) into master (ce063dd) will increase coverage by 0.94%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master      #70      +/-   ##
==========================================
+ Coverage   89.11%   90.06%   +0.94%     
==========================================
  Files           3        3              
  Lines         634      634              
==========================================
+ Hits          565      571       +6     
+ Misses         44       39       -5     
+ Partials       25       24       -1     

Impacted Files	Coverage Δ
carbon.go	91.13% <100.00%> (+0.66%)	⬆️
translator.go	65.51% <0.00%> (+6.89%)	⬆️

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[rntdrts]

I am doing this PR activity after a long time, so got confused while trying to compare the fork with master branch, thus you will see multiple commits - please ignore those. I have executed the example go code before pushing my branch.

hey @naman1303!

Thank you for your contribution! Please let me know when this is ready for review! 👍