Merge pull request go-git#75 from mcuadros/scope-config

repository.ConfigScoped and worktree.Commit with empty CommitOptions

Author: mcuadros

_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.

_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{