minor edits for useful commands (#32)

source/content/index.md

@@ -10,5 +10,6 @@ update_cycle/index
 principles/index
 feature_branch/index
 versioning/index
+useful_commands/index
 exercise/index
 ```

source/content/useful_commands/git_log.md

@@ -0,0 +1,12 @@
+### <strong style="color:black">git log</strong>
+
+<!-- pages-include -->
+
+`git log` is an extremely powerful tool to explore the history of a repository with some particularly useful option:
+
+- `--oneline` shows a condensed view with each commit on a single line.
+- `--graph` visualizes the commit history as a branching graph.
+- `--author="Author Name"` shows commits made by a specific author.
+- `--since="2 weeks ago"` displays commits made since a specific date, useful for reviewing recent changes.
+- `-p` displays the patch (diff) introduced in each commit, allowing you to see what changes were made.
+- `--grep="keyword"` filters commits to show only those with messages containing a specific keyword.

source/content/git/useful_commands/index.md → source/content/useful_commands/index.md

@@ -1,24 +1,33 @@
 # Useful Commands
 
+This is a selection of commands that can particularly enhance your experience with <i class="fab fa-git"></i>:
+
 {% if build == "slides" %}
 <!-- BUILDING THE SLIDES -->
 ```{toctree}
 :maxdepth: 2
 :numbered:
 
 ./status
+./git_log
 ./reflog
 ./rebase_i
 ./stash
 ./cherry_pick
 ```
 {% else %}
 <!-- BUILDING THE PAGES -->
+
 ::::{dropdown} git status &nbsp;[{octicon}`link-external;0.8em`](https://git-scm.com/docs/git-status)
 ```{include} ./status.md
 :start-after: <!-- pages-include -->
 ```
 ::::
+::::{dropdown} git log &nbsp;[{octicon}`link-external;0.8em`](https://git-scm.com/docs/git-log)
+```{include} ./git_log.md
+:start-after: <!-- pages-include -->
+```
+::::
 ::::{dropdown} git reflog &nbsp;[{octicon}`link-external;0.8em`](https://git-scm.com/docs/git-reflog)
 ```{include} ./reflog.md
 :start-after: <!-- pages-include -->
@@ -39,4 +48,8 @@
 :start-after: <!-- pages-include -->
 ```
 ::::
+::::{dropdown} git status &nbsp;[{octicon}`link-external;0.8em`](https://git-scm.com/docs/git-status)
+```{include} ./status.md
+:start-after: <!-- pages-include -->
+```
 {% endif %}

source/index.md

@@ -14,5 +14,6 @@ content/update_cycle/index
 content/principles/index
 content/feature_branch/index
 content/versioning/index
+content/useful_commands/index
 content/exercise/index
 ```