call out bug tracker in generated README more clearly (#1164)

Author: sjkelly

src/AutoBuild.jl

@@ -1343,7 +1343,13 @@ function build_jll_package(src_name::String,
         print(io, """
               This is an autogenerated package constructed using [`BinaryBuilder.jl`](https://github.com/JuliaPackaging/BinaryBuilder.jl).""")
         if is_yggdrasil()
-            print(io, " The originating [`build_tarballs.jl`](https://github.com/JuliaPackaging/Yggdrasil/blob/$(yggdrasil_head())/$(ENV["PROJECT"])/build_tarballs.jl) script can be found on [`Yggdrasil`](https://github.com/JuliaPackaging/Yggdrasil/), the community build tree.  If you have any issue, please report it to the Yggdrasil [bug tracker](https://github.com/JuliaPackaging/Yggdrasil/issues).")
+            println(io, """
+                        The originating [`build_tarballs.jl`](https://github.com/JuliaPackaging/Yggdrasil/blob/$(yggdrasil_head())/$(ENV["PROJECT"])/build_tarballs.jl) script can be found on [`Yggdrasil`](https://github.com/JuliaPackaging/Yggdrasil/), the community build tree.")
+                        
+                        ## Bug Reports
+                        
+                        If you have any issue, please report it to the Yggdrasil [bug tracker](https://github.com/JuliaPackaging/Yggdrasil/issues).
+                        """)
         end
         println(io)
         println(io)