docs: Add slash documentation

Author: lbartoletti

docs/index.md

@@ -17,6 +17,7 @@ maxdepth: 1
 ---
 Installation <usage/installation>
 Settings <usage/configuration>
+Slash Commands <usage/slash_commands>
 ```
 
 ```{toctree}

docs/usage/slash_commands.md

@@ -0,0 +1,84 @@
+# Slash Commands
+
+QChat supports Discord-style slash commands. Type a command starting with `/` in the chat input to use it.
+
+## Available Commands
+
+| Command | Description | Example |
+| :------ | :---------- | :------ |
+| `/list` | Display all available commands | `/list` |
+| `/shrug` | Send the shrug emoticon ¯\\_(ツ)_/¯ | `/shrug oh well` |
+| `/tableflip` | Send the table flip emoticon (╯°□°)╯︵ ┻━┻ | `/tableflip QGIS crash` |
+| `/lenny` | Send the Lenny face ( ͡° ͜ʖ ͡°) | `/lenny` |
+| `/yolo` | Convert your message to UPPERCASE with a dice emoji | `/yolo let's do this` |
+| `/flip` | Flip a coin (heads or tails) | `/flip` |
+| `/roll` | Roll dice with customizable faces and count | `/roll 2d20` |
+| `/8ball` | Ask the magic 8-ball a question | `/8ball Will it rain?` |
+
+## Command Details
+
+### /list
+
+Displays a list of all available slash commands with their descriptions.
+
+### /shrug, /tableflip, /lenny
+
+These emoticon commands send their respective text art to the chat. You can optionally add a message after the command:
+
+```
+/shrug I don't know
+```
+
+Sends: `¯\_(ツ)_/¯ I don't know`
+
+### /yolo
+
+Converts your message to uppercase and adds a dice emoji. If no message is provided, sends "YOLO! 🎲".
+
+```
+/yolo let's go
+```
+
+Sends: `LET'S GO 🎲`
+
+### /flip
+
+Flips a virtual coin and returns either "Heads" or "Tails" with a coin emoji.
+
+### /roll
+
+Rolls dice with customizable parameters. Supports several formats:
+
+- `/roll` — Roll a single 6-sided die (default)
+- `/roll 20` — Roll a single 20-sided die
+- `/roll 2d6` — Roll 2 six-sided dice
+- `/roll 4d20` — Roll 4 twenty-sided dice
+
+**Limits:**
+
+- Number of dice: 1 to 100
+- Number of sides: 2 to 1000
+
+When rolling multiple dice, the result shows each individual roll and the total:
+
+```
+🎲 15, 8, 12 (total: 35)
+```
+
+### /8ball
+
+Ask the [magic 8-ball](https://en.wikipedia.org/wiki/Magic_8_Ball) a question and receive a random classic response. The question text is optional but makes it more fun:
+
+```
+/8ball Should I use Shapefile?
+```
+
+Possible responses include:
+
+- Positive: "It is certain", "Without a doubt", "Yes definitely", "Outlook good"
+- Neutral: "Reply hazy, try again", "Ask again later", "Cannot predict now"
+- Negative: "Don't count on it", "My reply is no", "Outlook not so good", "Very doubtful"
+
+## Autocomplete
+
+When you start typing `/` in the chat input, QChat provides autocomplete suggestions for available commands.