fix formatting and add response output (#2504)

Signed-off-by: Sarthak Sharma <t-sartsharma@microsoft.com>

Co-authored-by: Mark Fussell <markfussell@gmail.com>

daprdocs/content/en/reference/components-reference/supported-bindings/kafka.md

@@ -37,6 +37,8 @@ spec:
     secretKeyRef:
       name: kafka-secrets
       key: saslPasswordSecret
+  - name: initialOffset # Optional. Used for input bindings.
+    value: "newest"
   - name: maxMessageBytes # Optional.
     value: 1024
   - name: version # Optional.
@@ -54,9 +56,9 @@ spec:
 | authRequired | Y | Input/Output | Enable [SASL](https://en.wikipedia.org/wiki/Simple_Authentication_and_Security_Layer) authentication with the Kafka brokers. | `"true"`, `"false"` |
 | saslUsername | N | Input/Output | The SASL username used for authentication. Only required if `authRequired` is set to `"true"`. | `"adminuser"` |
 | saslPassword | N | Input/Output | The SASL password used for authentication. Can be `secretKeyRef` to use a [secret reference]({{< ref component-secrets.md >}}). Only required if `authRequired` is set to `"true"`. | `""`, `"KeFg23!"` |
-| initialOffset   | N | The initial offset to use if no offset was previously committed. Should be "newest" or "oldest". Defaults to "newest". | `"oldest"` |
+| initialOffset   | N | Input | The initial offset to use if no offset was previously committed. Should be "newest" or "oldest". Defaults to "newest". | `"oldest"` |
 | maxMessageBytes | N | Input/Output | The maximum size in bytes allowed for a single Kafka message. Defaults to 1024. | `2048` |
-| version | N | Kafka cluster version. Defaults to 1.0.0 | `1.0.0`
+| version | N | Input/Output | Kafka cluster version. Defaults to 1.0.0 | `1.0.0`
 
 ## Binding support
 
@@ -88,6 +90,10 @@ curl -X POST http://localhost:3500/v1.0/bindings/myKafka \
       }'
 ```
 
+### Response
+
+An HTTP 204 (No Content) and empty body will be returned if successful.
+
 ## Related links
 
 - [Basic schema for a Dapr component]({{< ref component-schema >}})