Fix errant docstring

doc/README.md

@@ -25,9 +25,10 @@ sudo tlmgr install ucs dvipng
 ## Fixing Warnings ##
 
 - "citation not found: R###"
-  $ cd doc/build; grep -rin R### .
   There is probably an underscore after a reference
-  in the first line of a docstring (e.g. [1]_)
+  in the first line of a docstring (e.g. [1]_).
+  Use this method to find the source file:
+  $ cd doc/build; grep -rin R####
 
 - "Duplicate citation R###, other instance in...""
   There is probably a [2] without a [1] in one of

skimage/feature/texture.py

@@ -298,7 +298,7 @@ def local_binary_pattern(image, P, R, method='default'):
 
 
 def multiblock_lbp(int_image, r, c, width, height):
-    """Multi-block local binary pattern (MB-LBP) [1]_.
+    """Multi-block local binary pattern (MB-LBP).
 
     The features are calculated similarly to local binary patterns (LBPs),
     (See :py:meth:`local_binary_pattern`) except that summed blocks are