A ui:outputRichText component represents formatted text and can be used to display input from a lightning:inputRichText or ui:inputRichText component. Using lightning:inputRichText is recommended since ui:inputRichText is no longer supported when Lightning Locker is enabled. Similarly, we recommend that you use lightning:formattedRichText instead of ui:outputRichText.
ui:outputRichText renders formatted text. For example, URLs and email addresses enclosed by anchor tags are displayed as hyperlinks.
This example sets bold text and binds the value to a lightning:inputRichText and ui:outputRichText component. The slds-text-longform class adds default spacing and list styling in your output.