Add 'Pin repositories to your GitHub profile' section

ebook/en/content/004-basic-shell-commands.md

@@ -78,6 +78,21 @@ rm -r ebook
 
 > Note: keep in mind that the `rm` command would completely delete the files and folders, and the action is irreversible, meaning that you can't get them back.
 
+### The `mkdir` command
+The `mkdir` command stands for `make directory` and is used for creating one or more new directories.  All you need to do in order to create a new directory using this command is to open a terminal, `cd` into desired location and run the following:
+
+```bash
+mkdir My_New_Directory
+```
+
+The above command will create a new, empty directory called `My_New_Directory`.
+
+You can also create serveral new directories by placing the names of desired directories after each other:
+
+```bash
+mkdir My_New_Directory My_Another_New_Directory
+```
+
 ### The `touch` command
 
 The `touch` command is used to update timestamps on files.  A useful feature of the touch command is that it will create an empty file.  This is useful if you want to create file in your directory that doesn't currently exist 

ebook/en/content/997-create-your-github-profile.md

@@ -59,6 +59,26 @@ Adding social meida buttons is a great way to direct visitors or even employers
 [![Twitter URL](https://img.shields.io/twitter/url/https/twitter.com/USER-NAME.svg?style=social&label=Twitter)](https://twitter.com/USER-NAME)
 ````
 
+### Pin repositories to your GitHub profile
+
+As the number of repositories you've created or contributed to grows, you might want to showcase a few of these repositories straight on your profile. This feature is extra useful when you want to present your portfolio to a potential employer and want them to see the work you are proudest of first!
+
+This is how you do it:
+
+In the top right corner, click on your profile photo and select "Your profile" from the menu: 
+
+![your profile button](https://user-images.githubusercontent.com/21223421/138660821-9a53c9a0-825f-4d46-a6e1-72037b52cc5f.png)
+
+In the section saying "Popular repositories" or "Pinned", click on "Customize your pins":
+
+![customize your pins button](https://user-images.githubusercontent.com/21223421/138660927-daef01dc-ae1c-4abc-8b8a-3769733a549e.png)
+
+After the previous step, the "Edit pinned items" modal will open. Here, you can choose a combination of up to six repositories and/or gists to display:
+
+![choose repositories](https://user-images.githubusercontent.com/21223421/138660995-73a57380-72c1-4272-8648-6d62adfb1e3d.png)
+
+Once you've decided which repositories you want to pin, click "Save pins".
+
 ### Get inspired
 Check out these useful links to inspire you help you with your GitHub profile:
 * https://github.com/abhisheknaiidu/awesome-github-profile-readme