Fixing the missing links in the documentation (#508)

* Update setting-up.mdx

* Update content/getting-started/setting-up.mdx

---------

Co-authored-by: Kaz Yoshihara <[email protected]>

Author: Claukorze

content/getting-started/setting-up.mdx

@@ -11,7 +11,7 @@ You can enter your account settings panel by navigating with [this link](https:/
 ![Account Settings Menu](./img/setting-up_01_account-menu_light.png#gh-light-mode-only)
 ![Account Settings Menu](./img/setting-up_01_account-menu_dark.png#gh-dark-mode-only)
 
-You can find all options described in detail `[here (TODO: insert link to actual documentation of UI)]`, and below are listed ones useful to get you running as soon as possible:
+You can find below the most useful options to get you running as soon as possible:
 
 ### Information
 
@@ -22,7 +22,7 @@ You can find all options described in detail `[here (TODO: insert link to actual
 ### Preferences
 
 - **Email Notifications** - select how often you would like to receive email notifications from Codewars about events like replies to your posts etc.
-- **Default Catalog List View** - default setting for **"Status"** filter on kata `[search page (TODO: link to docs on kata search page)]`. Beginners are advised to set it to **"Approved Only"**, but if you want to participate in [beta evaluation process](/concepts/kata/beta-process/), you can set it to any value you like.
+- **Default Catalog List View** - default setting for **"Status"** filter on kata [search page](https://docs.codewars.com/getting-started/finding-kata/#kata-search-page). Beginners are advised to set it to **"Approved Only"**, but if you want to participate in [beta evaluation process](/concepts/kata/beta-process/), you can set it to any value you like.
 - **Red Subscription** - donating some money, you can support Codewars and get some great features. Check more information on [Codewars RED](https://www.codewars.com/subscription).
 
 Now you just need to click `UPDATE` to have your settings stored in the database. Anytime you need to change your settings, you can always come back to the **Account Settings** panel and perform the necessary changes.
@@ -34,7 +34,7 @@ You can enter your training setup panel by navigating with [this link](https://w
 ![Training Setup Menu](./img/setting-up_02_training-menu_light.png#gh-light-mode-only)
 ![Training Setup Menu](./img/setting-up_02_training-menu_dark.png#gh-dark-mode-only)
 
-Again, a detailed description can be found in `[UI documentation (TODO: insert link to actual documentation of UI)]`, but things needed to get you started are briefly explained below:
+Again, a detailed description can be found [here](https://docs.codewars.com/training), but things needed to get you started are briefly explained below:
 
 - **Would you like to receive our newsletter with weekly challenges?** - choose "Yes" to receive a weekly email with some suggested tasks to solve. The email contains a choice of Codewars problems of every difficulty, so you will be always able to find something that would suit you. Participating in the Weekly Coding Challenge is a great way to keep yourself motivated! If you do not want to receive the email, just pick "No".
 - **Choose the language you wish to train on** - you can select from a large list of languages available on Codewars. You can select one, but if you want, you can select more. During your training, Codewars suggests you tasks which are available in languages you choose here. If you are not sure if you want to select some language or not, don't worry! You can always switch to any language available for the currently trained task.