Arch Linux

Description:
The doc2 generation's semantic checking seems broken because macro.nim will open a "astspec.txt" file which is missing,the solution is simple:just add a softlink form /usr/share/nim/doc to /usr/lib/nim folder.

Additional info:
* package version(s):0.13.0-1
* config and/or log files etc.
$ nim doc2 templates.nim
Hint: system [Processing]
Hint: templates [Processing]
Hint: tables [Processing]
Hint: hashes [Processing]
lib/nim/pure/hashes.nim(13, 19) Warning: redefinition of label 'proc' [RedefinitionOfLabel]
Hint: strutils [Processing]
Hint: parseutils [Processing]
Hint: etcpriv [Processing]
Hint: math [Processing]
Hint: times [Processing]
Hint: macros [Processing]
lib/nim/core/macros.nim(15, 32) Error: cannot open '../doc/astspec.txt'
Hint: annotate [Processing]
annotate.nim(5, 14) Error: undeclared identifier: 'newStmtList'
annotate.nim(5, 25) Error: attempting to call undeclared routine: 'newStmtList'
annotate.nim(5, 25) Error: expression 'newStmtList' cannot be called
annotate.nim(7, 24) Error: type mismatch: got (NimNode)
but expected one of:
system.len(x: seq[T])
system.len(x: cstring)
system.len(x: TOpenArray)
system.len(w: WideCString)
system.len(x: string)
system.len(x: array[I, T])

annotate.nim(8, 20) Error: undeclared identifier: 'newProc'
annotate.nim(9, 22) Error: undeclared identifier: 'ident'
annotate.nim(9, 34) Error: could not resolve: [](names, i)
annotate.nim(9, 28) Error: type mismatch: got ([].T)
but expected one of:
system.$(x: system.int)
system.$(x: $.T)
system.$(x: seq[T])
system.$(x: system.uint64)


Steps to reproduce:
Any nim file whit "nim doc2" command