Update examples and prepare v3

[cristaloleg]

No description provided.

[codecov]

Codecov Report

Merging #49 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master      #49   +/-   ##
=======================================
  Coverage   86.50%   86.50%           
=======================================
  Files          13       13           
  Lines         504      504           
=======================================
  Hits          436      436           
+ Misses         41       40    -1     
- Partials       27       28    +1     

Impacted Files	Coverage Δ
numeric_date.go	88.23% <0.00%> (-11.77%)	⬇️
parse.go	85.00% <0.00%> (+5.00%)	⬆️

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