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+# Edit this Documentation
+
+Go to the section and theme you want to change: On the left navigator.
+
+Click **Edit on GitHub** on the right.
+
+On the **Issue** tab you’ll find the open issues.
+Read what need to be done by clicking on the issue you like to fix.
+
+By going backwards in the browser **(!)**, again go to the **Code** tab.
+
+Click on the **edit pencil** on the right side directly above the text to edit this file on your fork of Human Connection (HC).
+
+You can see a preview of your changes by clicking the **Preview changes** tab aside the **Edit file** tab.
+
+If you are ready, fill in the **Propose file change** at the end of the webpage.
+
+After that you have to send your change to the HC basis with a pull request.
+Here make a comment which issue you have fixed. At least the number.
+
+
+## Markdown your documentation
+
+To design your documentation see the syntax description at GitBook:
+
+[https://toolchain.gitbook.com/syntax/markdown.html](https://toolchain.gitbook.com/syntax/markdown.html)
+
+### Some quick Examples
+
+#### Headlines
+```markdown
+# Main headline
+## Smaller headlines
+### Small headlines
+```
+
+#### Tabs
+```markdown
+{% tabs %}
+{% tab title=„XXX“ %}
+XXX
+{% endtab %}
+{% tab title=„XXX“ %}
+XXX
+{% endtab %}
+…
+{% endtabs %}
+```
+
+#### Commands
+    ```LANGUAGE (for text highlighting)
+    XXX
+    ```
+
+#### Links
+```markdown
+[https://XXX](XXX)
+```
+
+#### Screenshots or other Images
+```markdown
+![XXX](https://XXX)
+```
+
+#### Hints for ToDos
+```markdown
+{% hint style="info" %} TODO: XXX {% endhint %}
+```
+
+## Host the screenshots
+
+### Host on Human Connection
+
+{% hint style="info" %} TODO: How to host on Human Connection (GitHub) ... {% endhint %}
+
+### Quick Solution
+
+To quickly host the screenshots go to:
+
+[https://imgur.com](https://imgur.com).
+
+There click the green button **New post**.
+
+Drag the image into the appropriate area.
+
+Right click on it and choose kind of **Open link in new tab**.
+
+Copy the URL and paste it were you need it.
+
+
+## Screenshot modification
+
+### Add an arrow or some other marking stuff
+
+{% tabs %}
+
+{% tab title=„mac OS“ %}
+
+#### In the Preview App
+
+Got to: **Menu** + **Tools** (GER: Werkzeuge) + **Annotate** (GER: Anmerkungen) + etc.
+
+{% endtab %}
+
+{% tab title=„Windows“ %}
+
+{% hint style="info" %} TODO: How to modify screenshots ... {% endhint %}
+
+{% endtab %}
+
+{% tab title=„Linux“ %}
+
+{% hint style="info" %} TODO: How to modify screenshots ... {% endhint %}
+
+{% endtab %}
+
+{% endtabs %}