Added note in documentation that Parent/Child support may not yet be …

…generally available (#534)

account_child.go

@@ -14,6 +14,7 @@ type ChildAccount = Account
 type ChildAccountToken = Token
 
 // ListChildAccounts lists child accounts under the current account.
+// NOTE: Parent/Child related features may not be generally available.
 func (c *Client) ListChildAccounts(ctx context.Context, opts *ListOptions) ([]ChildAccount, error) {
 	return getPaginatedResults[ChildAccount](
 		ctx,
@@ -24,6 +25,7 @@ func (c *Client) ListChildAccounts(ctx context.Context, opts *ListOptions) ([]Ch
 }
 
 // GetChildAccount gets a single child accounts under the current account.
+// NOTE: Parent/Child related features may not be generally available.
 func (c *Client) GetChildAccount(ctx context.Context, euuid string) (*ChildAccount, error) {
 	return doGETRequest[ChildAccount](
 		ctx,
@@ -35,6 +37,7 @@ func (c *Client) GetChildAccount(ctx context.Context, euuid string) (*ChildAccou
 // CreateChildAccountToken creates a short-lived token that can be used to
 // access the Linode API under a child account.
 // The attributes of this token are not currently configurable.
+// NOTE: Parent/Child related features may not be generally available.
 func (c *Client) CreateChildAccountToken(ctx context.Context, euuid string) (*ChildAccountToken, error) {
 	return doPOSTRequest[ChildAccountToken, any](
 		ctx,