Add auto completion intruction to docs (#101)

Added more specific instructions how to enable auto completion in the note following the brew install commands.

Co-authored-by: Karen Cárcamo <karencfv@users.noreply.github.com>

Author: 2 people

.goreleaser.yml

@@ -21,9 +21,8 @@ brews:
       bin.install "ecctl"
       system "#{bin}/ecctl", "generate", "completions", "-l", "#{var}/ecctl.auto"
     caveats: |
-      Make sure to source #{var}/ecctl.auto for autocompletions
-      If you have previously built ecctl from source, make sure you've removed that 
-      binary from any directory that has been added to your user $PATH.
+      If you have previously built ecctl from source, make sure you've removed that binary from any directory that has been added to your user $PATH.
+      To enable autocompletion make sure to run `source <(ecctl generate completions)` and add it to your shell interpreter configuration file by running `echo "source <(ecctl generate completions)" >> ~/.bash_profile` or `echo "source <(ecctl generate completions)" >> ~/.zshrc` in case you are using ZSH.
     test: system "#{bin}/ecctl version"
     folder: Formula
 builds:

docs/ecctl-getting-started.asciidoc

@@ -46,7 +46,7 @@ Updating Homebrew...
 🍺  /usr/local/Cellar/ecctl/1.0.0: 6 files, 13MB, built in 7 seconds
 ----
 
-NOTE: To get autocompletions working, they must be sourced from your shell profile.
+NOTE: To get autocompletions working make sure to run `source <(ecctl generate completions)`. If you prefer to add to your shell interpreter configuration file run `echo "source <(ecctl generate completions)" >> ~/.bash_profile` or `echo "source <(ecctl generate completions)" >> ~/.zshrc`.
 
 ////
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