api_changes_list_2020.md: JavaEE plugin split (#290)
api_changes_list_2020.md: JavaEE plugin split (#290)

JetBrains/intellij-sdk-docs,JetBrains/intellij-sdk-docs,artspb/intellij-sdk-docs,artspb/intellij-sdk-docs,artspb/intellij-sdk-docs,artspb/intellij-sdk-docs,JetBrains/intellij-sdk-docs