Update certificate-signing-requests.mdx (#18987)

In order to proceed with an update, one needs to reuse a previously generated as it is not optional, hence the suggested change.

Co-authored-by: Rebecca Tamachiro <[email protected]>

Author: Techsurfer1981

src/content/docs/ssl/edge-certificates/additional-options/certificate-signing-requests.mdx

@@ -40,11 +40,11 @@ To use a CSR:
 5. When you [upload the custom certificate](/ssl/edge-certificates/custom-certificates/uploading/) to Cloudflare, select an **Encoding mode** of **Certificate Signing Request (CSR)** and enter the associated value.
 
    :::note
-   You will not see the option to adjust your **Encoding Mode** until after you have created a CSR associated with the specific zone or your account. 
+   You will not see the option to adjust your **Encoding Mode** until after you have created a CSR associated with the specific zone or your account.
    :::
 
 ## Renew a certificate
 
-When you [renew a custom certificate](/ssl/edge-certificates/custom-certificates/renewing/), you can reuse a previously generated CSR.
+When you [renew a custom certificate](/ssl/edge-certificates/custom-certificates/renewing/), you need to reuse a previously generated CSR.
 
 Note that it is not possible to use a different CSR with the same certificate. In this case, you must upload the certificate as a new certificate, selecting the new CSR.