fix: --upgrade flag for all pip instances (#557)

docs/advanced/app_types.mdx

@@ -63,7 +63,7 @@ app = OpenSourceApp()
 - Here there is no need to setup any api keys. You just need to install embedchain package and these will get automatically installed. 📦
 - Once you have imported and instantiated the app, every functionality from here onwards is the same for either type of app. 📚
 - `OpenSourceApp` is opinionated. It uses the best open source embedding model and LLM on the market.
-- extra dependencies are required for this app type. Install them with `pip install embedchain[opensource]`.
+- extra dependencies are required for this app type. Install them with `pip install --upgrade embedchain[opensource]`.
 
 ### CustomApp
 

docs/advanced/data_types.mdx

@@ -91,7 +91,7 @@ app.add("https://docs.embedchain.ai/", data_type="docs_site")
 ```
 
 ### Notion
-To use notion you must install the extra dependencies with `pip install embedchain[notion]`.
+To use notion you must install the extra dependencies with `pip install --upgrade embedchain[notion]`.
 
 To load a notion page, use the data_type as `notion`. Since it is hard to automatically detect, forcing this is advised.
 The next argument must **end** with the `notion page id`. The id is a 32-character string. Eg:

docs/examples/discord_bot.mdx

@@ -26,7 +26,7 @@ Send Messages (under Text Permissions)
 1. Install embedchain python package:
 
 ```bash
-pip install "embedchain[discord]"
+pip install --upgrade "embedchain[discord]"
 ```
 
 2. Launch your Discord bot:

docs/examples/poe_bot.mdx

@@ -7,7 +7,7 @@ title: '🔮 Poe Bot'
 1. Install embedchain python package:
 
 ```bash
-pip install "embedchain[poe]"
+pip install --upgrade "embedchain[poe]"
 ```
 
 2. Create a free account on [Poe](https://www.poe.com?utm_source=embedchain).

docs/examples/whatsapp_bot.mdx

@@ -7,7 +7,7 @@ title: '💬 WhatsApp Bot'
 1. Install embedchain python package:
 
 ```bash
-pip install embedchain
+pip install --upgrade embedchain
 ```
 
 2. Launch your WhatsApp bot:

docs/quickstart.mdx

@@ -6,7 +6,7 @@ description: '💡 Start building LLM powered bots under 30 seconds'
 Install embedchain python package:
 
 ```bash
-pip install embedchain
+pip install --upgrade embedchain
 ```
 
 Creating a chatbot involves 3 steps: