Apply suggestions from @oeggert review

Co-authored-by: oeggert <117319296+oeggert@users.noreply.github.com>

Author: mDuo13

docs/references/protocol/ledger-data/ledger-entry-types/credential.md

@@ -39,7 +39,7 @@ In addition to the [common fields](../common-fields.md), {% code-page-name /%} e
 | `Issuer`            | String - [Address][] | AccountID         | Yes       | The account that issued this credential. |
 | `IssuerNode`        | String               | UInt64            | Yes       | A hint indicating which page of the issuer's directory links to this entry, in case the directory consists of multiple pages. |
 | `PreviousTxnID`     | String - [Hash][]    | Hash256           | Yes       | The identifying hash of the transaction that most recently modified this entry. |
-| `PreviousTxnLgrSeq` | Number               | UInt32            | Yes       | The [index of the ledger][Ledger Index] that contains the transaction that most recently modified this object. |
+| `PreviousTxnLgrSeq` | Number               | UInt32            | Yes       | The [index of the ledger][Ledger Index] that contains the transaction that most recently modified this entry. |
 | `Subject`           | String - [Address][] | AccountID         | Yes       | The account that this credential is for. |
 | `SubjectNode`       | String               | UInt64            | Yes       | A hint indicating which page of the subject's owner directory links to this entry, in case the directory consists of multiple pages. |
 | `URI`               | String - Hexadecimal | Blob | No | Arbitrary additional data about the credential, for example a URL where a W3C-formatted Verifiable Credential can be retrieved. |

docs/references/protocol/transactions/types/credentialcreate.md

@@ -32,7 +32,7 @@ In addition to the [common fields][], CredentialCreate transactions use the foll
 |:-----------------|:-----------------|:------------------|:----------|:------------|
 | `Subject` | String - [Address][] | AccountID | Yes | The subject of the credential. |
 | `CredentialType` | String - Hexadecimal | Blob | Yes | Arbitrary data defining the type of credential this entry represents. The minimum length is 1 byte and the maximum length is 64 bytes. |
-| `Expiration` | Number | UInt32 | No | Time after which this credential should be considered expired, in [seconds since the Ripple Epoch][]. |
+| `Expiration` | Number | UInt32 | No | Time after which this credential expires, in [seconds since the Ripple Epoch][]. |
 | `URI` | String | Blob | No | Arbitrary additional data about the credential, such as the URL where users can look up an associated Verifiable Credential document. If present, the minimum length is 1 byte and the maximum is 256 bytes. |
 
 The `Account` field (the sender) of the transaction is the issuer of the credential. It is possible for the issuer and the subject to be the same account.