[Doc] Add import instructions for databricks_share and databricks_recipient (#4608)

## Changes
- Add import instructions

## Tests
<!-- 
How is this tested? Please see the checklist below and also describe any
other relevant tests
-->

- [x] relevant change in `docs/` folder

Author: nkvuong

NEXT_CHANGELOG.md

@@ -8,6 +8,8 @@
 
 ### Documentation
 
+ * Add import instructions for `databricks_share` and `databricks_recipient` ([#4608](https://github.com/databricks/terraform-provider-databricks/pull/4608))
+
 ### Exporter
 
 ### Internal Changes

docs/resources/recipient.md

@@ -115,6 +115,14 @@ In addition to all arguments above, the following attributes are exported:
 * `cloud` - Cloud vendor of the recipient's Unity Catalog Metstore. This field is only present when the authentication_type is `DATABRICKS`.
 * `region` - Cloud region of the recipient's Unity Catalog Metstore. This field is only present when the authentication_type is `DATABRICKS`.
 
+## Import
+
+The recipient resource can be imported using the name of the recipient.
+
+```bash
+terraform import databricks_recipient.this <recipient_name>
+```
+
 ## Related Resources
 
 The following resources are often used in the same context:

docs/resources/share.md

@@ -113,6 +113,14 @@ In addition to all arguments above, the following attributes are exported:
 * `created_by` - The principal that created the share.
 * `status` - Status of the object, one of: `ACTIVE`, `PERMISSION_DENIED`.
 
+## Import
+
+The share resource can be imported using the name of the share.
+
+```bash
+terraform import databricks_share.this <share_name>
+```
+
 ## Related Resources
 
 The following resources are often used in the same context: