docs: improved readme file

readme.md

@@ -2,20 +2,32 @@
 This project is inspired from the python application called gitlabber (https://github.com/ezbz/gitlabber).
 It is mainly to learn Golang. But also to make something that specifically solves my problem. :)
 
-The program can download and update all repositories you have access to on a Gitlab server.
-This works for bot gitlab.com and a selfhosted Gitlab instance. It only supports the HTTP method.
+The program can clone and pull all repositories you have access to on a selfhosted or SaaS provided Gitlab server.
+It only supports the HTTP access method.
 
 # Usage
 ```
-Usage: gogitlabber
-         --archived=(any|excluded|only)
-         --destination=$HOME/Documents
-         --gitlab-url=gitlab.com
-         --gitlab-token=<supersecrettoken>
+Usage of gogitlabber:
+  -archived string
+        To include archived repositories (any|excluded|exclusive)
+          example: -archived=any
+        env = GOGITLABBER_ARCHIVED
+         (default "excluded")
 
-You can also set these environment variables:
-  GOGITLABBER_ARCHIVED=(any|excluded|only)
-  GOGITLABBER_DESTINATION=$HOME/Documents
-  GITLAB_API_TOKEN=<supersecrettoken>
-  GITLAB_URL=gitlab.com
+  -destination string
+        Specify where to check the repositories out
+          example: -destination=$HOME/repos
+        env = GOGITLABBER_DESTINATION
+         (default "$HOME/Documents")
+
+  -gitlab-api-token string
+        Specify GitLab API token
+          example: -gitlab-api=glpat-xxxx
+        env = GITLAB_API_TOKEN
+
+  -gitlab-url string
+        Specify GitLab host
+          example: -gitlab-url=gitlab.com
+        env = GITLAB_URL
+         (default "gitlab.com")
 ```