docs(BanOptions): make days description more clear (#5327)

src/managers/GuildMemberManager.js

@@ -198,7 +198,7 @@ class GuildMemberManager extends BaseManager {
    * Bans a user from the guild.
    * @param {UserResolvable} user The user to ban
    * @param {Object} [options] Options for the ban
-   * @param {number} [options.days=0] Number of days of messages to delete, must be between 0 and 7
+   * @param {number} [options.days=0] Number of days of messages to delete, must be between 0 and 7, inclusive
    * @param {string} [options.reason] Reason for banning
    * @returns {Promise<GuildMember|User|Snowflake>} Result object will be resolved as specifically as possible.
    * If the GuildMember cannot be resolved, the User will instead be attempted to be resolved. If that also cannot

src/structures/GuildMember.js

@@ -352,7 +352,7 @@ class GuildMember extends Base {
   /**
    * Bans this guild member.
    * @param {Object} [options] Options for the ban
-   * @param {number} [options.days=0] Number of days of messages to delete, must be between 0 and 7
+   * @param {number} [options.days=0] Number of days of messages to delete, must be between 0 and 7, inclusive
    * @param {string} [options.reason] Reason for banning
    * @returns {Promise<GuildMember>}
    * @example