fix typo, patch by Shlomi Fish!

llvm-svn: 68784
diff --git a/llvm/docs/GettingStarted.html b/llvm/docs/GettingStarted.html
index d62fee7..5dd39c2 100644
--- a/llvm/docs/GettingStarted.html
+++ b/llvm/docs/GettingStarted.html
@@ -1489,7 +1489,7 @@
 
 <div class="doc_text">
 <p>This section gives an example of using LLVM.  llvm-gcc3 is now obsolete,
-so we only include instructiosn for llvm-gcc4.
+so we only include instructions for llvm-gcc4.
 </p>
 
 <p><b>Note:</b> The <i>gcc4</i> frontend's invocation is <b><i>considerably different</i></b>