chore(pipeline): add Go 1.16 to matrix build (#90)

* chore(pipeline): add 1.16 to matrix build

* chore(readme): add GO 1.16 to supported versions

.github/workflows/release.yml

@@ -5,7 +5,7 @@ jobs:
     runs-on: ubuntu-18.04
     strategy:
       matrix:
-        go: ['1.14', '1.15']
+        go: ['1.14', '1.15', '1.16']
     name: Go ${{ matrix.go }} test
     steps:
       - uses: actions/checkout@v2

README.md

@@ -43,6 +43,7 @@ For your convinience you can find the relevant standards linked below.
 | <1.13   | :x:                |
 | 1.14    | :white_check_mark: |
 | 1.15    | :white_check_mark: |
+| 1.16    | :white_check_mark: |
 
 ## Why another library