3 files changed, 20 insertions, 91 deletions
diff --git a/_examples/README.md b/_examples/README.md
index 6c17941..1d82fbd 100644
--- a/_examples/README.md
+++ b/_examples/README.md
@@ -3,26 +3,27 @@
 Here you can find a list of annotated _go-git_ examples:
 
 ### Basic
-- [showcase](showcase/main.go) - A small showcase of the capabilities of _go-git_
-- [open](open/main.go) - Opening a existing repository cloned by _git_
-- [clone](clone/main.go) - Cloning a repository
+- [showcase](showcase/main.go) - A small showcase of the capabilities of _go-git_.
+- [open](open/main.go) - Opening a existing repository cloned by _git_.
+- [clone](clone/main.go) - Cloning a repository.
     - [username and password](clone/auth/basic/username_password/main.go) - Cloning a repository
-      using a username and password
+      using a username and password.
     - [personal access token](clone/auth/basic/access_token/main.go) - Cloning
-      a repository using a GitHub personal access token
-- [commit](commit/main.go) - Commit changes to the current branch to an existent repository
-- [push](push/main.go) - Push repository to default remote (origin)
-- [pull](pull/main.go) - Pull changes from a remote repository
-- [checkout](checkout/main.go) - Check out a specific commit from a repository
-- [log](log/main.go) - Emulate `git log` command output iterating all the commit history from HEAD reference
+      a repository using a GitHub personal access token.
+- [commit](commit/main.go) - Commit changes to the current branch to an existent repository.
+- [push](push/main.go) - Push repository to default remote (origin).
+- [pull](pull/main.go) - Pull changes from a remote repository.
+- [checkout](checkout/main.go) - Check out a specific commit from a repository.
+- [log](log/main.go) - Emulate `git log` command output iterating all the commit history from HEAD reference.
 - [branch](branch/main.go) - How to create and remove branches or any other kind of reference.
-- [tag](tag/main.go) - List/print repository tags
-- [remotes](remotes/main.go) - Working with remotes: adding, removing, etc
-- [progress](progress/main.go) - Printing the progress information from the sideband
-- [revision](revision/main.go) - Solve a revision into a commit
-- [submodule](submodule/main.go) - Submodule update remote
+- [tag](tag/main.go) - List/print repository tags.
+- [remotes](remotes/main.go) - Working with remotes: adding, removing, etc.
+- [progress](progress/main.go) - Printing the progress information from the sideband.
+- [revision](revision/main.go) - Solve a revision into a commit.
+- [config](config/main.go) - Explains how to work with config files.
+- [submodule](submodule/main.go) - Submodule update remote.
 
 ### Advanced
-- [custom_http](custom_http/main.go) - Replacing the HTTP client using a custom one
+- [custom_http](custom_http/main.go) - Replacing the HTTP client using a custom one.
 - [clone with context](context/main.go) - Cloning a repository with graceful cancellation.
-- [storage](storage/README.md) - Implementing a custom storage system
+- [storage](storage/README.md) - Implementing a custom storage system.
diff --git a/_examples/commit/main.go b/_examples/commit/main.go
index c83dc98..4529c84 100644
--- a/_examples/commit/main.go
+++ b/_examples/commit/main.go
@@ -46,7 +46,8 @@ func main() {
 
 	// Commits the current staging area to the repository, with the new file
 	// just created. We should provide the object.Signature of Author of the
-	// commit.
+	// commit Since version 5.0.1, we can omit the Author signature, being read
+	// from the git config files.
 	Info("git commit -m \"example go-git commit\"")
 	commit, err := w.Commit("example go-git commit", &git.CommitOptions{
 		Author: &object.Signature{
diff --git a/_examples/config/main.go b/_examples/config/main.go
deleted file mode 100644
index 7c5592f..0000000
--- a/_examples/config/main.go
+++ /dev/null
@@ -1,73 +0,0 @@
-package main
-
-import (
-	"github.com/go-git/go-git/v5"
-	. "github.com/go-git/go-git/v5/_examples"
-	format "github.com/go-git/go-git/v5/plumbing/format/config"
-
-	"github.com/go-git/go-git/v5/config"
-)
-
-// Example of how to:
-// - Access basic local (i.e. ./.git/config) configuration params
-// - Set basic local config params
-// - Set custom local config params
-// - Access custom local config params
-// - Set global config params
-// - Access global & system config params
-
-func main() {
-	// Open this repository
-	// Info("git init")
-	// r, err := git.Init(memory.NewStorage(), nil)
-	Info("open local git repo")
-	r, err := git.PlainOpen(".")
-	CheckIfError(err)
-
-	// Load the configuration
-	cfg, err := r.Config()
-	CheckIfError(err)
-
-	// Get core local config params
-	if cfg.Core.IsBare {
-		Info("repo is bare")
-	} else {
-		Info("repo is not bare")
-	}
-
-	Info("worktree is %s", cfg.Core.Worktree)
-
-	// Set basic local config params
-	cfg.Remotes["origin"] = &config.RemoteConfig{
-		Name: "origin",
-		URLs: []string{"git@github.com:mcuadros/go-git.git"},
-	}
-
-	Info("origin remote: %+v", cfg.Remotes["origin"])
-
-	// NOTE: The examples below show advanced usage of the config.Merged system, which should
-	// only be used as a last resort if the basic data defined on the Config struct don't
-	// suffice for what you're trying to do.
-
-	// Set local custom config param
-	cfg.Merged.AddOption(format.LocalScope, "custom", format.NoSubsection, "name", "Local Name")
-
-	// Set global config param (~/.gitconfig)
-	cfg.Merged.AddOption(format.GlobalScope, "custom", format.NoSubsection, "name", "Global Name")
-
-	// Get custom config param (merged in the same way git does: system -> global -> local)
-	Info("custom.name is %s", cfg.Merged.Section("custom").Option("name"))
-
-	//In order to save the config file, you need to call SetConfig
-	//After calling this go to .git/config and see the custom.name added and the changes to the remote
-	r.Storer.SetConfig(cfg)
-
-	// Get system config params (/etc/gitconfig)
-	systemSections := cfg.Merged.SystemConfig().Sections
-	for _, ss := range systemSections {
-		Info("System section: %s", ss.Name)
-		for _, o := range ss.Options {
-			Info("\tOption: %s = %s", o.Key, o.Value)
-		}
-	}
-}