fix(guide): simplify directory structure

guide/english/miscellaneous/how-to-squash-multiple-commits-into-one-with-git/index.md

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+---
+title: How to Squash Multiple Commits into One with Git
+---
+This is an awesome feature of `rebase` that can be used in the `interactive` mode. To squash the last _n_ commits into one, run the following command:
+
+    git rebase -i HEAD~n
+
+That will open up a text-editor with something similar to the following:
+
+    pick commit_1
+    pick commit_2
+    pick commit_3
+    ...
+    pick commit_n
+    # Bunch of comments
+
+Leave the first commit alone, and change the rest of the `pick`s to `squash`. Save and exit the editor.
+
+So if you wanted to squash the last three commits, you'll first run `git rebase -i HEAD~3` and then you'll want to edit your commits to look something like this:
+
+    pick dd661ba Commit 1
+    squash 71f5fee Commit 2
+    squash f4b4bf1 Commit 3
+
+If you've already pushed to a remote before squashing your commits, you'll have to push to the remote again, with the `-f` flag, otherwise git will throw an error at you.
+
+It is strongly suggested that you read the information in the opened file as there are many things you can do.