fix(tutorial): doc review 2

Author: SamyOubouaziz

tutorials/object-storage-sse-c-with-secret-manager/index.mdx

@@ -16,7 +16,7 @@ dates:
 ---
 import Requirements from '@macros/iam/requirements.mdx'
 
-In this tutorial you will learn how to use the Secret manager to store the encryption key used with [SSE-C](/object-storage/api-cli/enable-sse-c/).
+In this tutorial you will learn how to use Key Manager and Secret Manager to generate and store an encryption key used with [SSE-C](/object-storage/api-cli/enable-sse-c/) to encrypt and decrypt objects stored in a Scaleway Object Storage bucket.
 
 <Requirements />
 
@@ -27,7 +27,7 @@ In this tutorial you will learn how to use the Secret manager to store the encry
 
 The goal here is to use Key Manager to generate the encryption key, store the encryption key in Secret Manager, then use it to encrypt Object Storage objects SSE-C.
 
-### Generating the encryption key
+## Generating the encryption key
 
 Run the following commands to create a key in Key Manager, generate the encryption key, then store it in Secret Manager.
 
@@ -38,9 +38,9 @@ SECRET_ID=$(scw secret secret create name=ssec-key path=/keys -o template="{{.ID
 scw secret version create "$SECRET_ID" data="@ssec.key"
 ```
 
-### Encryption key and digest preparation
+## Preparing the encryption key and its digest
 
-Run the following command to access the secret version to get the encryption key, encode it to base64, calculate the digest of the key (also encoded in base64), and store the outputs in environment variables. 
+Run the following command to access the secret version to get the encryption key, encode it to base64, calculate the MD5 digest of the key (also encoded in base64), and store the outputs in environment variables. 
 
 ```bash
 scw secret version access "$SECRET_ID" revision=latest raw=true > ssec.key
@@ -77,3 +77,7 @@ If you delete the secret containing the encryption key, you also lose the data e
       --sse-customer-key $ENCRYPTION_KEY \
       --sse-customer-key-md5 $KEY_DIGEST
     ```
+
+You can now use Key Manager and Secret Manager to safely create and store an encryption key to secure your Object Storage deployment with SSE-C.
+
+Refer to the [dedicated documentation](/object-storage/api-cli/enable-sse-c/) for more information on how to use SSE-C for Scaleway Object Storage.