Fix go version

.github/workflows/test.yaml

@@ -14,15 +14,15 @@ jobs:
       if: success()
       uses: actions/setup-go@v2
       with:
-        go-version: 1.18.x
+        go-version: 1.16.x
     - name: Checkout code
       uses: actions/checkout@v2
     - name: Run tests
       run: go test -v -covermode=count ./...
     - name: Postman generated
       working-directory: specs
       run: |
-        go install github.com/grokify/spectrum@v1.15.0
+        go install github.com/grokify/spectrum@v1.10.3
         spectrum --config engage-digital_postman2.config.json --basePostmanFile engage-digital_postman2.base.json --openapiFile engage-digital_openapi3.yaml --postmanFile engage-digital_postman2.json.new
         diff engage-digital_postman2.json engage-digital_postman2.json.new
   lint:

specs/README.md

@@ -10,7 +10,7 @@ Use the following files:
 The following files are used to generate the Postman collection and are not designed to be used on their own:
 
 * `engage-digital_postman2.config.json`: configuration file for Spectrum Postman Collection generator.
-* `engage-digital_postman2.base.json`: 
+* `engage-digital_postman2.base.json`:
 
 ## Postman Collection
 
@@ -27,10 +27,10 @@ Use `spectrum` to create the Postman 2.x collection from the OpenAPI 3 API Speci
 The following will install the `spectrum` executable in the `~/go/bin` directory.
 
 ```bash
-$ go get github.com/grokify/spectrum
+$ go install github.com/grokify/spectrum@v1.10.3
 ```
 
-This approach requires `go` 1.16 minimum be installed on your system. See more here: [https://golang.org/](https://golang.org/).
+This approach requires `go` 1.16 be installed on your system. See more here: [https://golang.org/](https://golang.org/).
 
 ### Usage