a few updates to getting started

nbs/docs/getting-started/2_quickstart.ipynb

@@ -58,10 +58,18 @@
     "* Go to [dashboard.nixtla.io](https://dashboard.nixtla.io/team/1245738/usage)\n",
     "* Sign in with Google, GitHub or your email\n",
     "* Create your API key by going to 'API Keys' in the menu and clicking on 'Create New API Key'\n",
-    "* Refresh the page and your API key will be there\n",
+    "* Your new key will appear. Copy the API key using the button on the right.\n",
     "    "
    ]
   },
+  {
+   "cell_type": "markdown",
+   "id": "aa3705dd-6133-4eb0-8c53-8a8ff65ee455",
+   "metadata": {},
+   "source": [
+    "<img src=\"https://github.com/Nixtla/nixtla/blob/main/nbs/img/dashboard.png?raw=true\" alt=\"Dashboard for TimeGPT API keys. Keys is in the middle, with trash and copy buttons on the right.\" width=\"700\" />"
+   ]
+  },
   {
    "cell_type": "markdown",
    "id": "5f30be1a-3eaf-4133-8254-680e8f7cda72",
@@ -70,12 +78,20 @@
     "## Step 2: Install Nixtla"
    ]
   },
+  {
+   "cell_type": "markdown",
+   "id": "73ad0fc4-bcf1-4b7e-8e6c-5969982e1b78",
+   "metadata": {},
+   "source": [
+    "In your favorite Python development environment:"
+   ]
+  },
   {
    "cell_type": "markdown",
    "id": "d9c35e70",
    "metadata": {},
    "source": [
-    "You can install `nixtla` with `pip`:\n",
+    "Install `nixtla` with `pip`:\n",
     "    \n",
     "```shell\n",
     "pip install nixtla\n",
@@ -90,14 +106,6 @@
     "## Step 3: Import the Nixtla TimeGPT client"
    ]
   },
-  {
-   "cell_type": "markdown",
-   "id": "f9322614-a82b-44e5-a3b6-5330b8ad7ba6",
-   "metadata": {},
-   "source": [
-    "In your favorite Python development environment:"
-   ]
-  },
   {
    "cell_type": "code",
    "execution_count": null,
@@ -352,6 +360,14 @@
     ":::"
    ]
   },
+  {
+   "cell_type": "markdown",
+   "id": "7631f17b-0ca4-4cf1-9b89-182a7d85fda6",
+   "metadata": {},
+   "source": [
+    "### Produce a longer forecast"
+   ]
+  },
   {
    "cell_type": "markdown",
    "id": "5c4790e3",
@@ -601,6 +617,14 @@
     "nixtla_client.plot(df, timegpt_fcst_df, time_col='timestamp', target_col='value')"
    ]
   },
+  {
+   "cell_type": "markdown",
+   "id": "ff6d8e76-dbc1-407f-8a49-5e622735ca3d",
+   "metadata": {},
+   "source": [
+    "### Produce a shorter forecast"
+   ]
+  },
   {
    "cell_type": "markdown",
    "id": "12e9766e-d7a8-40f6-bfaa-4df07da6c505",
@@ -657,7 +681,7 @@
    "id": "1164dc69-4ae2-44c5-beb5-c5c8e8e72e96",
    "metadata": {},
    "source": [
-    "## Using DateTime index to infer frequency"
+    "### Use DateTime index to infer frequency"
    ]
   },
   {

nbs/docs/getting-started/3_setting_up_your_api_key.ipynb

@@ -33,7 +33,7 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "<img src=\"https://github.com/Nixtla/nixtla/blob/main/nbs/img/api_key_process.png?raw=true\" alt=\"Figure 1. API key set up process\" />"
+    "<img src=\"https://github.com/Nixtla/nixtla/blob/main/nbs/img/api_key_process.png?raw=true\" alt=\"Diagram of the API Key configuration process. Method 1. Unsecure. Copy API key from Nixtla dashboard. 2. Paste API Key in Python code. 3. Validate API key. Method 2. Secure. One method, temporary. Open terminal. Set environment variable. Validate API key. Another method, permanent. Create .env File. Set API Key in file. Validate API Key.\" />"
    ]
   },
   {

nbs/docs/tutorials/14_hierarchical_forecasting.ipynb

@@ -156,8 +156,8 @@
    "id": "81f2b918",
    "metadata": {},
    "source": [
-    "<img src=\"https://github.com/Nixtla/nixtla/blob/main/nbs/img/australia_tourism.png?raw=true\" alt=\"Figure 1. Overview of Australia\" width=\"700\" />\n",
-    "<img src=\"https://github.com/Nixtla/nixtla/blob/main/nbs/img/australia_hierarchy.png?raw=true\" alt=\"Figure 2. Overview of hierarchy of Australia\" width=\"700\" />"
+    "<img src=\"https://github.com/Nixtla/nixtla/blob/main/nbs/img/australia_tourism.png?raw=true\" alt=\"Map of Australia color coded by state. The states are from west to east, and then north to south - Western Australia, Northern Territory, South Australia, Queensland, New South Wales, Victoria. Australian Capital Territory is a small area within New South Wales. Tasmania is an island to the southeast.\" width=\"700\" />\n",
+    "<img src=\"https://github.com/Nixtla/nixtla/blob/main/nbs/img/australia_hierarchy.png?raw=true\" alt=\"Australia hierarchy. Australia at the top with New South Wales and Queenslad below. Sidney, Blue Mountains, and Hunter in New South Wales. Brisbane and Cairns in Queensland.\" width=\"700\" />"
    ]
   },
   {