Fix 2 typos in README

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@2170 65c4cc65-6c06-0410-ace0-fbb531ad65f3

README

@@ -24,7 +24,7 @@ community on this Wiki:
 must apply to all loadable modules as well, except as defined below.
 
   Digium, Inc. (formerly Linux Support Services) retains copyright to all 
-of the core Asterisk system, and therefore can grant, at its sole discression, 
+of the core Asterisk system, and therefore can grant, at its sole discretion, 
 the ability for companies, individuals, or organizations to create proprietary
 or Open Source (but non-GPL'd) modules which may be dynamically linked at
 runtime with the portions of Asterisk which fall under our copyright
@@ -34,7 +34,7 @@ umbrella, or are distributed under more flexible licenses than GPL.
   If you wish to use our code in other GPL programs, don't worry -- there
 is no requirement that you provide the same exemption in your GPL'd
 products (although if you've written a module for Asterisk we would
-strongly encourage you to make the same excemption that we do).
+strongly encourage you to make the same exemption that we do).
 
   Specific permission is also granted to OpenSSL and OpenH323 to link to
 Asterisk.