WASHINGTON, United States (AFP) — Twitter announced Tuesday it was easing its 140-character limit for tweets, allowing users to add links, attachments and some other features within the short messages. The move comes as Twitter’s efforts to increase its user base and engagement have been sputtering, raising questions about its growth trend. “Over the past decade, the tweet has evolved from a simple 140-character text message to a rich canvas for creative expression featuring photos, […]