Corrected typos.

1 files changed, 5 insertions, 6 deletions

diff --git a/doc/cha-preface.texi b/doc/cha-preface.texi
index 20ea7f8765..9e78177652 100644
--- a/doc/cha-preface.texi
+++ b/doc/cha-preface.texi
@@ -9,18 +9,17 @@ Even if @acronym{GnuTLS} is a typical library software, it operates
 over several security and cryptographic protocols which require the
 programmer to make careful and correct usage of them. Otherwise it
 is likely to only obtain a false sense of security.
-The terms of Security and 
-network security terms are very general even if restricted to computer
-software, and cannot be offered by a single cryptographic
+The term of security is very broad even if restricted to computer
+software, and cannot be confined to a single cryptographic
 library.  For that reason, do not consider any program secure just
 because it uses @acronym{GnuTLS}; there are several ways to compromise
 a program or a communication line and @acronym{GnuTLS} only helps with
 some of them.
 
 Although this document tries to be self contained, basic network
-programming and PKI knowlegde is assumed in most of it. A good
-introduction to networking can be found in @xcite{STEVENS} and for
-Public Key Infrastructure in @xcite{GUTPKI}.
+programming and public key infrastructure (PKI) knowledge is assumed 
+in most of it. A good introduction to networking can be found 
+in @xcite{STEVENS} and for public key infrastructure in @xcite{GUTPKI}.
 
 Updated versions of the @acronym{GnuTLS} software and this document
 will be available from @url{http://www.gnutls.org/} and