Fix some typos in the llvm doc

llvm-svn: 260855
diff --git a/llvm/docs/HowToReleaseLLVM.rst b/llvm/docs/HowToReleaseLLVM.rst
index f42acb7..d44ea04 100644
--- a/llvm/docs/HowToReleaseLLVM.rst
+++ b/llvm/docs/HowToReleaseLLVM.rst
@@ -332,7 +332,7 @@
 #. During the remaining rounds of testing, only patches that fix critical
    regressions may be applied.
 
-#. For dot releases all patches must mantain both API and ABI compatibility with
+#. For dot releases all patches must maintain both API and ABI compatibility with
    the previous major release.  Only bugfixes will be accepted.
 
 Merging Patches