Remove beta notes

Author: justinpolygon

rest/reference.go

@@ -209,7 +209,6 @@ func (c *ReferenceClient) ListOptionsContracts(ctx context.Context, params *mode
 }
 
 // ListShortInterest retrieves short interest data for stocks, including days to cover and average daily volume.
-// Note: this method utilizes an experimental API and could experience breaking changes or deprecation.
 func (c *ReferenceClient) ListShortInterest(ctx context.Context, params *models.ListShortInterestParams, options ...models.RequestOption) *iter.Iter[models.ShortInterest] {
 	return iter.NewIter(ctx, ListShortInterestPath, params, func(uri string) (iter.ListResponse, []models.ShortInterest, error) {
 		res := &models.ListShortInterestResponse{}
@@ -219,7 +218,6 @@ func (c *ReferenceClient) ListShortInterest(ctx context.Context, params *models.
 }
 
 // ListShortVolume retrieves short volume data for stocks, including venue-specific volumes and short volume ratio.
-// Note: this method utilizes an experimental API and could experience breaking changes or deprecation.
 func (c *ReferenceClient) ListShortVolume(ctx context.Context, params *models.ListShortVolumeParams, options ...models.RequestOption) *iter.Iter[models.ShortVolume] {
 	return iter.NewIter(ctx, ListShortVolumePath, params, func(uri string) (iter.ListResponse, []models.ShortVolume, error) {
 		res := &models.ListShortVolumeResponse{}
@@ -229,7 +227,6 @@ func (c *ReferenceClient) ListShortVolume(ctx context.Context, params *models.Li
 }
 
 // ListTreasuryYields retrieves treasury yield data for U.S. Treasury securities at various maturities.
-// Note: this method utilizes an experimental API and could experience breaking changes or deprecation.
 func (c *ReferenceClient) ListTreasuryYields(ctx context.Context, params *models.ListTreasuryYieldsParams, options ...models.RequestOption) *iter.Iter[models.TreasuryYield] {
 	return iter.NewIter(ctx, ListTreasuryYieldsPath, params, func(uri string) (iter.ListResponse, []models.TreasuryYield, error) {
 		res := &models.ListTreasuryYieldsResponse{}