docs: remove links to inexistent tarballs

Change-Id: I541aff8597f815124f7277eb24944da2fceffe9e
diff --git a/docs/INSTALL.rst b/docs/INSTALL.rst
index 3443043..c388db5 100644
--- a/docs/INSTALL.rst
+++ b/docs/INSTALL.rst
@@ -1,5 +1,5 @@
-NLSR Installation Instructions
-==============================
+Installation Instructions
+=========================
 
 .. toctree::
 ..