Fix typos in comments

[rhty]

he value という表記がなされていました。 the value の誤植かと思われましたので PR を作成させていただきました。 些細な変更ですが、ご確認ください。

[codecov-commenter]

Codecov Report

Merging #6 into master will not change coverage. The diff coverage is n/a.

@@            Coverage Diff            @@
##            master        #6   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files            5         5           
  Lines          211       211           
=========================================
  Hits           211       211           

Impacted Files	Coverage Δ
bool.go	100.00% <ø> (ø)
float64.go	100.00% <ø> (ø)
int64.go	100.00% <ø> (ø)
string.go	100.00% <ø> (ø)
time.go	100.00% <ø> (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 75ae8a7...483f7d6. Read the comment docs.