Minor improvements

.github/workflows/ci.yml

@@ -32,7 +32,7 @@ jobs:
 
     strategy:
       matrix:
-        go: [ '1.19.x', '1.20.x' ]
+        go: [ '1.18.x', '1.19.x', '1.20.x' ]
 
     steps:
       - name: Set up Go

README.md

@@ -18,18 +18,12 @@
 
 ### Installation
 
-Make sure you have a working Go 1.17+ workspace (_[instructions](https://golang.org/doc/install)_), then:
+Make sure you have a working Go 1.18+ workspace (_[instructions](https://golang.org/doc/install)_), then:
 
 ````bash
-go get -d github.com/essentialkaos/go-badge
+go get github.com/essentialkaos/go-badge
 ````
 
-For update to latest stable release, do:
-
-```bash
-go get -d -u github.com/essentialkaos/go-badge
-```
-
 ### Usage example
 
 ```go