update NEWS.MD

Author: randy3k

NEWS.md

@@ -1,11 +1,13 @@
 # languageserver 0.3.15
 
 **Closed issues:**                                                                           
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+                                                                                             
+- package::function() autocompletion doesn't include re-exported functions (#590)
 - Server failed to start probably due to hard-coded installation path ERROR (#579)
-
-**Merged pull requests:**
-
+                                                                                             
+**Merged pull requests:**                                                                    
+                                                                                             
+- Include all exports in namespace objects (#591)
 - Disable linters actions (#589)
 - Avoid emitting a negative activeSignature (#586)
 - fix CRAN check warnings (#583)