Add note about bson import to README (mongodb#451)

blink1073 · Jul 16, 2020 · f88ea24 · f88ea24
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commit f88ea24
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diff --git a/README.md b/README.md
@@ -107,6 +107,19 @@ res, err := collection.InsertOne(ctx, bson.M{"name": "pi", "value": 3.14159})
 id := res.InsertedID
 ```
 
+To use `bson.M`, you will need to add `"go.mongodb.org/mongo-driver/bson"` to your imports.
+
+Your import statement should now look like this:
+
+```go
+import (
+    "go.mongodb.org/mongo-driver/bson"
+    "go.mongodb.org/mongo-driver/mongo"
+    "go.mongodb.org/mongo-driver/mongo/options"
+    "go.mongodb.org/mongo-driver/mongo/readpref"
+)
+```
+
 Several query methods return a cursor, which can be used like this:
 
 ```go