docs: 📝 Add "Set variable" doc

apps/docs/docs/editor/blocks/_category_.json

@@ -0,0 +1,4 @@
+{
+  "label": "Blocks",
+  "position": 1
+}

apps/docs/docs/editor/blocks/set-variable.md

@@ -0,0 +1,29 @@
+# Set variable
+
+The "Set variable" block allows you to set a particular value to a variable.
+
+<img src="/img/blocks/set-variable.png" width="600" alt="Set variable"/>
+
+This value can be any kind of plain text but also **Javascript code**.
+
+It means you can apply operations on existing variables:
+
+```
+{{Score}} + 5
+```
+
+```
+{{Score}} * {{Multiplier}}
+```
+
+But also set the variable to the current date for example:
+
+```
+new Date()
+```
+
+Or a random ID:
+
+```
+Math.round(Math.random() * 1000000)
+```

apps/docs/docs/get-started/overview.md

@@ -4,6 +4,6 @@ sidebar_position: 2
 
 # Overview
 
-The best way for me to show you Typebot's simplicity is through a product tour video:
+The best way to understand the basic principles of Typebot is by watching the "Get started" video series:
 
-<iframe width="900" height="500" src="https://www.youtube.com/embed/u8FZHvlYviw" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
+<iframe width="900" height="500" src="https://www.youtube.com/embed/videoseries?list=PLHpyDlgo4x7NUjF-L5VaYfBPQ03uzf5l3" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>

apps/docs/docs/get-started/welcome.md

@@ -5,10 +5,10 @@ slug: /
 
 # Welcome
 
-[Typebot](https://www.typebot.io) is a conversational form builder that helps you collect more responses compared to other form builders (Typeform, Google Forms, Tally...).
+[Typebot](https://www.typebot.io) Typebot is an open-source alternative to Landbot. It allows you to create conversational apps/forms (Lead qualification, Product launch, User onboarding, Customer support), embed them anywhere on your web/mobile apps, and collect results in real-time.
 
 This is the Typebot documentation. It's a great place to find most answers. Please use the search box in the top right or the navigation menu (soon available) on the left-hand side to find the answers you're looking for.
 
 This documentation is a work in progress.
 
-If you can't find what you're looking for, don't hesitate to contact me directly on the web app or at baptiste@typebot.io.
+If you can't find what you're looking for, don't hesitate to contact me directly on the web app or at support@typebot.io.

apps/docs/docusaurus.config.js

@@ -17,7 +17,7 @@ module.exports = {
       },
       items: [
         {
-          href: 'https://github.com/typebot-io/docs',
+          href: 'https://github.com/baptisteArno/typebot.io/tree/main/apps/docs',
           label: 'Contribute',
           position: 'right',
         },
@@ -41,10 +41,6 @@ module.exports = {
               label: 'Roadmap',
               to: 'https://app.typebot.io/feedback',
             },
-            {
-              label: 'Blog',
-              to: 'https://www.typebot.io/blog',
-            },
           ],
         },
         {
@@ -63,10 +59,6 @@ module.exports = {
         {
           title: 'Company',
           items: [
-            {
-              label: 'About',
-              to: 'https://www.typebot.io/about',
-            },
             {
               label: 'Terms of Service',
               href: 'https://www.typebot.io/terms-of-service',