message: chore(PULL_REQUEST_TEMPLATE): remove default link to "#1"
  this has mostly not been edited by the submitter, and "#1" is actually not related
diff: @@ -18,4 +18,4 @@ please don't forget to click on raw, and copy that, not the already "compiled" o
  <!--add "fixes" / "closes" before an number to indicate that these will be fixed by this pr-->
  -- #1
  +- <!--Add the issue this pr fixes here, in the style of "#1"-->
  