Fix external links in RdLexer and NewLispLexer

2 files changed, 2 insertions, 2 deletions

diff --git a/pygments/lexers/lisp.py b/pygments/lexers/lisp.py
index e258c347..50c56373 100644
--- a/pygments/lexers/lisp.py
+++ b/pygments/lexers/lisp.py
@@ -1400,7 +1400,7 @@ class RacketLexer(RegexLexer):
 
 class NewLispLexer(RegexLexer):
     """
-    For `newLISP. <www.newlisp.org>`_ source code (version 10.3.0).
+    For `newLISP. <http://www.newlisp.org/>`_ source code (version 10.3.0).
 
     .. versionadded:: 1.5
     """
diff --git a/pygments/lexers/r.py b/pygments/lexers/r.py
index dce61969..f4e76f6f 100644
--- a/pygments/lexers/r.py
+++ b/pygments/lexers/r.py
@@ -421,7 +421,7 @@ class RdLexer(RegexLexer):
     This is a very minimal implementation, highlighting little more
     than the macros. A description of Rd syntax is found in `Writing R
     Extensions <http://cran.r-project.org/doc/manuals/R-exts.html>`_
-    and `Parsing Rd files <developer.r-project.org/parseRd.pdf>`_.
+    and `Parsing Rd files <http://developer.r-project.org/parseRd.pdf>`_.
 
     .. versionadded:: 1.6
     """