additional Qdrant Cloud info

- improved landing page for Cloud
- edited, proofread and fixed most content
- mentioned the addition of gcp
- added some visuals

qdrant-landing/content/documentation/cloud/authentication.md

@@ -0,0 +1,40 @@
+---
+title: Authentication
+weight: 30
+---
+
+# Authentication
+
+This page shows you how to use the Qdrant Cloud Console to create a custom API key for a cluster. You will learn how to connect to your cluster using the new API key.
+
+## Create API keys
+
+The API key is only shown once after creation. If you lose it, you will need to create a new one. 
+However, we recommend rotating the keys from time to time. To create additional API keys do the following.
+
+1. Go to the **Access** section in the Dashboard.
+2. The **Access Management** list will display all available API keys.
+3. Click **Create** and choose a cluster name from the dropdown menu.
+> **Note:** You can create a key that provides access to multiple clusters. Simply check off which cluster in the dropdown
+4. Click **OK** and retrieve your API key. 
+
+## Authenticate via Python client
+
+Now that you have created your first cluster and key, you might want to access Qdrant Cloud from within your application.
+Our official Qdrant clients for Python, Go, and Rust all support the API key parameter. 
+
+```python
+from qdrant_client import QdrantClient
+
+qdrant_client = QdrantClient(
+    "xyz-example.eu-central.aws.staging-cloud.qdrant.io", 
+    prefer_grpc=True,
+    api_key="<<-provide-your-own-key->>",
+)
+```
+
+```bash
+curl \
+  -X GET https://xyz-example.eu-central.aws.staging-cloud.qdrant.io:6333 \
+  --header 'api-key: <provide-your-own-key>'
+```