feat: add rust snippets

qdrant-landing/content/documentation/headless/snippets/inference/ingest/rust.md

@@ -0,0 +1,23 @@
+```rust
+use qdrant_client::{
+    Payload, Qdrant, QdrantError,
+    qdrant::{Document, PointStruct, UpsertPointsBuilder},
+};
+use std::collections::HashMap;
+
+let client = Qdrant::from_url("http://localhost:6333").build()?;
+
+client
+    .upsert_points(UpsertPointsBuilder::new("<your-collection>",
+        vec![
+            PointStruct::new(1,
+                HashMap::from([("my-bm25-vector".to_string(),
+                    Document {
+                      text: "Recipe for baking chocolate chip cookies".into(),
+                      model: "qdrant/bm25".into(),
+                      options: HashMap::new(),
+                      }.into())]),
+                Payload::default())
+            ]))
+        .await?;
+```