Add version support policy

.github/workflows/test.yml

@@ -18,18 +18,22 @@ jobs:
           - '1.19'
           - '1.18'
           - '1.17'
+          - '1.16'
+          - '1.15'
+          - '1.14'
+          - '1.13'
         os:
           - ubuntu-latest
           - macos-latest
           - windows-latest
-
+    env:
+      GO111MODULE: 'on'
     steps:
       - uses: actions/checkout@v3
       - name: Setup Go
         uses: actions/setup-go@v3
         with:
           go-version: ${{ matrix.go-version }}
-          cache: true
       - name: Install dependencies
         run: go get .
       - name: Test with the Go CLI

README.md

@@ -294,6 +294,12 @@ This code will try to read and parse the configuration file `config.yml` as the
 
 For more details check the [example](/example) directory.
 
+## Version Support Policy
+
+We support the last 7 versions of Golang. E.g. if the current version is 1.19, we test compatibility with all versions from 1.19 to 1.13.
+
+If you use an older version of Golang in your project, please use an older library version.
+
 ## Contribution
 
 The tool is open-sourced under the [MIT](LICENSE) license.