MongoDB destination connector: documents in collections should have at least a record_id field before attempting upserts (#395)

Author: Paul-Cornell

snippets/general-shared-text/mongodb-record-id.mdx

@@ -0,0 +1,6 @@
+<Note>
+    For the destination connector, Unstructured recommends that all documents in the target collection have a field 
+    named `record_id` with a `String` data type. 
+    Unstructured can use this field to do intelligent document overwrites. Without this field, duplicate documents 
+    might be written to the collection or, in some cases, the operation could fail altogether.
+</Note>

snippets/general-shared-text/mongodb.mdx

@@ -11,6 +11,8 @@ allowfullscreen
 ></iframe>
 
 import AllowIPAddressRanges from '/snippets/general-shared-text/ip-address-ranges.mdx';
+import MongoDBRecordID from '/snippets/general-shared-text/mongodb-record-id.mdx';
+
 
 - A MongoDB Atlas account. [Create an account](https://www.mongodb.com/cloud/atlas/register).
 - A MongoDB Atlas cluster. [Create a cluster](https://www.mongodb.com/docs/atlas/tutorial/deploy-free-tier-cluster).
@@ -22,6 +24,9 @@ import AllowIPAddressRanges from '/snippets/general-shared-text/ip-address-range
 - The cluster must have at least one database. [Create a database](https://www.mongodb.com/docs/compass/current/databases/#create-a-database).
 - The database must have at least one user, and that user must have sufficient access to the database. [Create a database user](https://www.mongodb.com/docs/atlas/security-add-mongodb-users/#add-database-users). [Give the user database access](https://www.mongodb.com/docs/manual/core/authorization/).
 - The database must have at least one collection. [Create a collection](https://www.mongodb.com/docs/compass/current/collections/#create-a-collection).
+
+  <MongoDBRecordID />
+
 - The connection string for the cluster. For MongoDB Atlas, this connection string must include the protocol, username, password, host, and cluster name. For example:
 
   ```text