Fix typos found by http://github.com/lyda/misspell-check

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157885 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/docs/SourceLevelDebugging.html b/docs/SourceLevelDebugging.html
index 8852278..918383b 100644
--- a/docs/SourceLevelDebugging.html
+++ b/docs/SourceLevelDebugging.html
@@ -2712,7 +2712,7 @@
   has address attributes: DW_AT_low_pc, DW_AT_high_pc, DW_AT_ranges or
   DW_AT_entry_pc. It also contains DW_TAG_variable DIEs that have a DW_OP_addr
   in the location (global and static variables). All global and static variables
-  should be included, including those scoped withing functions and classes. For
+  should be included, including those scoped within functions and classes. For
   example using the following code:</p>
 <div class="doc_code">
 <pre>