Minor changes to match the style guide.
diff --git a/Doc/lib/libbase64.tex b/Doc/lib/libbase64.tex
index 24525d1..a9adff0 100644
--- a/Doc/lib/libbase64.tex
+++ b/Doc/lib/libbase64.tex
@@ -9,7 +9,8 @@
\index{MIME!base64 encoding}
This module performs base64 encoding and decoding of arbitrary binary
-strings into text strings that can be safely emailed or posted. The
+strings into text strings that can be safely sent by email or included
+as part of an HTTP POST request. The
encoding scheme is defined in \rfc{1521} (\emph{MIME
(Multipurpose Internet Mail Extensions) Part One: Mechanisms for
Specifying and Describing the Format of Internet Message Bodies},