Add Rust snippet

Author: timvisee

qdrant-landing/content/documentation/headless/snippets/insert-points/update-mode/generated/rust.md

@@ -0,0 +1,17 @@
+```rust
+use qdrant_client::qdrant::{PointStruct, UpdateMode, UpsertPointsBuilder};
+
+client
+    .upsert_points(
+        UpsertPointsBuilder::new(
+            "{collection_name}",
+            vec![
+                PointStruct::new(1, vec![0.9, 0.1, 0.1], [("color", "red".into())]),
+                PointStruct::new(2, vec![0.1, 0.9, 0.1], [("color", "green".into())]),
+                PointStruct::new(3, vec![0.1, 0.1, 0.9], [("color", "blue".into())]),
+            ],
+        )
+        .update_mode(UpdateMode::InsertOnly),
+    )
+    .await?;
+```

qdrant-landing/content/documentation/headless/snippets/insert-points/update-mode/rust.rs

@@ -0,0 +1,21 @@
+use qdrant_client::qdrant::{PointStruct, UpdateMode, UpsertPointsBuilder};
+
+pub async fn main() -> anyhow::Result<()> {
+    let client = qdrant_client::Qdrant::from_url("http://localhost:6334").build()?; // @hide
+
+    client
+        .upsert_points(
+            UpsertPointsBuilder::new(
+                "{collection_name}",
+                vec![
+                    PointStruct::new(1, vec![0.9, 0.1, 0.1], [("color", "red".into())]),
+                    PointStruct::new(2, vec![0.1, 0.9, 0.1], [("color", "green".into())]),
+                    PointStruct::new(3, vec![0.1, 0.1, 0.9], [("color", "blue".into())]),
+                ],
+            )
+            .update_mode(UpdateMode::InsertOnly),
+        )
+        .await?;
+
+    Ok(())
+}