add string methods to index

diff --git a/Doc/lib/libstdtypes.tex b/Doc/lib/libstdtypes.tex
index 1fe2f60e072f9c96c0248893ce66cadb2d18feaa..ccc2c19083c3d9409c4576d3f5dea3696318d091 100644 (file)
--- a/Doc/lib/libstdtypes.tex
+++ b/Doc/lib/libstdtypes.tex
@@ -567,6 +567,7 @@ linear concatenation performance across versions and implementations.
 
 
 \subsubsection{String Methods \label{string-methods}}
+\indexii{string}{methods}
 
 These are the string methods which both 8-bit strings and Unicode
 objects support: