Finished character skill level editing guide

docs/md/tutorials/tut_0/tut0_3.md

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 # Editing a character's skill level
 
-...
+In Escape from Tarkov, skills are the representation of the profeciency of your PMC with sets of activities. Low level skill will make your PMC feel like a newly enrolled guerilla fighter, while maximum level skills will turn you into a real war machine !
+
+To do so:
+
+* Open your character profile (`%game%\server\user\%profileId%`) with your code editor.
+* Search for the first line with the `Skills` property.
+
+![Screenshot of the profile file](../assets/img/spt-aki/tutorials/tut_0/012.png)
+
+The `Skills` property contains a list of all the character's skills. For skills, their levels are derived from an experience points amount, much like the character experience.
+
+> **Note**\
+> The difference between a character level and its skill levels is that each skill level is an increment of 100 points and that the maximum level for each skill is level 51. A character with an Endurance skill and 100 points in it will have it at level 1. At 500  it will be level 5,and so on.
+
+* Open the search & replace bar of the code editor (shortcut: `Ctrl + H`).
+* In the first field, copy and paste the like `Progress` property of any of the skills. As they are all at `0`, it should find 56 matches.
+
+![Screenshot of the search with search field](../assets/img/spt-aki/tutorials/tut_0/013.png)
+![Screenshot of the search with search field filled](../assets/img/spt-aki/tutorials/tut_0/014.png)
+
+* In the second field copy and paste `Progress": 5100` *(to reach the max level: 51)*.
+
+![Screenshot of the search with replace field filled](../assets/img/spt-aki/tutorials/tut_0/015.png)
+
+* Click on the `Replace All` button to instantly replace the value for all the skills.
+
+![Screenshot of the replace all button](../assets/img/spt-aki/tutorials/tut_0/016.png)
+
+You've now updagred all your skills to level 51. **BUT** ! If you stop there, save your changes and start the game, you will encounter a "small" problem when you will reload because of the `BotReload` skill. Your PMC will reload at the speed of light and it will look bugged.
+
+To prevent this problems (or fix it):
+
+* Search for `BotReload` in the profile file.
+* Change the `Progress` value back to `0`.
+* Save your changes.
+
+Congratulation, you made your PMC reach it's physical peak ! If you start the game, and check your PMC skills screen you should now have something similar to the screenshot below:
+
+![Screenshot of the skills screen](../assets/img/spt-aki/tutorials/tut_0/017.png)
+
+With this part of the tutorial done, you're now ready to move one to the next step: [Editing your character's quests status](./#tutorials/tut_0/tut0_4.md).