Fix keyvault Readme issues (#14839)

* Fix key vault readme issues

* modify

sdk/keyvault/Azure.Security.KeyVault.Certificates/README.md

@@ -292,13 +292,13 @@ Several Azure Key Vault certificates client library samples are available to you
 * For Keys client library see [Keys client library][keys_client_library].
 
 ## Contributing
-See the [CONTRIBUTING.md][https://github.com/Azure/azure-sdk-for-net/blob/master/sdk/keyvault/CONTRIBUTING.md] for details on building, testing, and contributing to these libraries.
+See the [CONTRIBUTING.md][contributing] for details on building, testing, and contributing to these libraries.
 
 This project welcomes contributions and suggestions. Most contributions require you to agree to a Contributor License Agreement (CLA) declaring that you have the right to, and actually do, grant us the rights to use your contribution. For details, visit https://cla.microsoft.com.
 
 When you submit a pull request, a CLA-bot will automatically determine whether you need to provide a CLA and decorate the PR appropriately (e.g., label, comment). Simply follow the instructions provided by the bot. You will only need to do this once across all repos using our CLA.
 
-This project has adopted the [Microsoft Open Source Code of Conduct][code_of_conduct]. For more information see the Code of Conduct FAQ or contact [email protected] with any additional questions or comments.
+This project has adopted the [Microsoft Open Source Code of Conduct][code_of_conduct]. For more information see the [Code of Conduct FAQ][coc_faq] or contact [email protected] with any additional questions or comments.
 
 <!-- LINKS -->
 [certificate_client_src]: https://github.com/Azure/azure-sdk-for-net/tree/master/sdk/keyvault/Azure.Security.KeyVault.Certificates/src
@@ -319,6 +319,7 @@ This project has adopted the [Microsoft Open Source Code of Conduct][code_of_con
 [get_cetificates_sample]: https://github.com/Azure/azure-sdk-for-net/blob/master/sdk/keyvault/Azure.Security.KeyVault.Certificates/samples/Sample2_GetCertificates.md
 [code_of_conduct]: https://opensource.microsoft.com/codeofconduct/
 [DefaultAzureCredential]: https://github.com/Azure/azure-sdk-for-net/blob/master/sdk/identity/Azure.Identity/README.md
-[contributing]: https://github.com/Azure/azure-sdk-for-net/blob/master/sdk/keyvault/Microsoft.Azure.KeyVault/CONTRIBUTING.md
+[contributing]: https://github.com/Azure/azure-sdk-for-net/blob/master/sdk/keyvault/CONTRIBUTING.md
+[coc_faq]: https://opensource.microsoft.com/codeofconduct/faq/
 
 ![Impressions](https://azure-sdk-impressions.azurewebsites.net/api/impressions/azure-sdk-for-net%2Fsdk%2Fkeyvault%2FAzure.Security.KeyVault.Certificates%2FREADME.png)

sdk/keyvault/Azure.Security.KeyVault.Keys/README.md

@@ -375,7 +375,7 @@ This project welcomes contributions and suggestions. Most contributions require
 
 When you submit a pull request, a CLA-bot will automatically determine whether you need to provide a CLA and decorate the PR appropriately (e.g., label, comment). Simply follow the instructions provided by the bot. You will only need to do this once across all repos using our CLA.
 
-This project has adopted the [Microsoft Open Source Code of Conduct][code_of_conduct]. For more information see the Code of Conduct FAQ or contact [email protected] with any additional questions or comments.
+This project has adopted the [Microsoft Open Source Code of Conduct][code_of_conduct]. For more information see the [Code of Conduct FAQ][coc_faq] or contact [email protected] with any additional questions or comments.
 
 <!-- LINKS -->
 [API_reference]: https://docs.microsoft.com/dotnet/api/azure.security.keyvault.keys
@@ -403,5 +403,6 @@ This project has adopted the [Microsoft Open Source Code of Conduct][code_of_con
 [soft_delete]: https://docs.microsoft.com/azure/key-vault/key-vault-ovw-soft-delete
 [DefaultAzureCredential]: https://github.com/Azure/azure-sdk-for-net/blob/master/sdk/identity/Azure.Identity/README.md
 [contributing]: https://github.com/Azure/azure-sdk-for-net/blob/master/sdk/keyvault/CONTRIBUTING.md
+[coc_faq]: https://opensource.microsoft.com/codeofconduct/faq/
 
 ![Impressions](https://azure-sdk-impressions.azurewebsites.net/api/impressions/azure-sdk-for-net%2Fsdk%2Fkeyvault%2FAzure.Security.KeyVault.Keys%2FREADME.png)

sdk/keyvault/Azure.Security.KeyVault.Secrets/README.md

@@ -312,7 +312,7 @@ This project welcomes contributions and suggestions. Most contributions require
 
 When you submit a pull request, a CLA-bot will automatically determine whether you need to provide a CLA and decorate the PR appropriately (e.g., label, comment). Simply follow the instructions provided by the bot. You will only need to do this once across all repos using our CLA.
 
-This project has adopted the [Microsoft Open Source Code of Conduct][code_of_conduct]. For more information see the Code of Conduct FAQ or contact [email protected] with any additional questions or comments.
+This project has adopted the [Microsoft Open Source Code of Conduct][code_of_conduct]. For more information see the [Code of Conduct FAQ][coc_faq] or contact [email protected] with any additional questions or comments.
 
 <!-- LINKS -->
 [API_reference]: https://docs.microsoft.com/dotnet/api/azure.security.keyvault.secrets
@@ -335,5 +335,6 @@ This project has adopted the [Microsoft Open Source Code of Conduct][code_of_con
 [soft_delete]: https://docs.microsoft.com/azure/key-vault/key-vault-ovw-soft-delete
 [DefaultAzureCredential]: https://github.com/Azure/azure-sdk-for-net/blob/master/sdk/identity/Azure.Identity/README.md
 [contributing]: https://github.com/Azure/azure-sdk-for-net/blob/master/sdk/keyvault/CONTRIBUTING.md
+[coc_faq]: https://opensource.microsoft.com/codeofconduct/faq/
 
 ![Impressions](https://azure-sdk-impressions.azurewebsites.net/api/impressions/azure-sdk-for-net%2Fsdk%2Fkeyvault%2FAzure.Security.KeyVault.Secrets%2FREADME.png)