chore: import upstream snapshot with attribution

docs/md/explanation/table/constructing_schema.md

@@ -0,0 +1,47 @@
+# Construct a Table
+
+Examples of constructing an empty `Table` from a schema.
+
+<div class="javascript">
+
+JavaScript:
+
+```javascript
+var schema = {
+    x: "integer",
+    y: "string",
+    z: "boolean",
+};
+
+const table2 = await worker.table(schema);
+```
+
+</div>
+<div class="python">
+
+Python:
+
+```python
+from datetime import date, datetime
+
+schema = {
+    "x": "integer",
+    "y": "string",
+    "z": "boolean",
+}
+
+table2 = perspective.table(schema)
+```
+
+</div>
+<div class="rust">
+
+Rust:
+
+```rust
+let data = TableData::Schema(vec![(" a".to_string(), ColumnType::FLOAT)]);
+let options = TableInitOptions::default();
+let table = client.table(data.into(), options).await?;
+```
+
+</div>