Add explore info

Also, fix the explore heading.

diff --git a/README.md b/README.md
index 91177077cd0181cbf63fe4bc31ca01b65848be8f..2a87cae8cd541f06a71cd3967881117d41391ab5 100644 (file)
--- a/README.md
+++ b/README.md
@@ -13,6 +13,11 @@ Also, just after first commit, you may be asked to set up your name and email
 address with `git config ...` command. If `--global` is used the name and/or
 email will be automatically used for all the commits.
 
-# Explore - check out the repository info
+# Explore - check out the repository history
+The command that show the whole history is `git log`. The history is build from
+commits - changes to files in row scale.
+
+The changes of the commit can be shown by `git show COMMIT_ID`. Where the
+`COMMIT_ID` is the identifier obtained from `git log` command.
 
 # Log changes - build repository history