Add create API document using docfx

[nowsprinting]

Using https://github.com/sator-imaging/docfx-pages

[github-actions]

Code Metrics Report

	master (42671fb)	#108 (a3ba7ad)	+/-
Coverage	80.1%	80.1%	0.0%
Code to Test Ratio	1:0.7	1:0.7	0.0
Test Execution Time	3m8s	3m8s	0s

Details

  |                     | master (42671fb) | #108 (a3ba7ad) | +/-  |
  |---------------------|------------------|----------------|------|
  | Coverage            |            80.1% |          80.1% | 0.0% |
  |   Files             |               34 |             34 |    0 |
  |   Lines             |             1028 |           1028 |    0 |
  |   Covered           |              824 |            824 |    0 |
  | Code to Test Ratio  |            1:0.7 |          1:0.7 |  0.0 |
  |   Code              |             1815 |           1815 |    0 |
  |   Test              |             1419 |           1419 |    0 |
  | Test Execution Time |             3m8s |           3m8s |   0s |

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Reported by octocov