GitHub ci

[sc0Vu]

Changes:

• Add github ci
• Update composer.json

[codecov]

Codecov Report

Merging #34 (9767770) into master (0e63f27) will decrease coverage by 0.08%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##             master      #34      +/-   ##
============================================
- Coverage     89.05%   88.97%   -0.09%     
  Complexity       65       65              
============================================
  Files             1        1              
  Lines           137      136       -1     
============================================
- Hits            122      121       -1     
  Misses           15       15              

Impacted Files	Coverage Δ
src/Transaction.php	88.97% <0.00%> (-0.09%)	⬇️

---

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 0e63f27...9767770. Read the comment docs.