d Note fixing of #118 in release notes

Co-Authored-By: Llewellyn Falco <[email protected]>

Author: claremacrae

build/relnotes_x.y.z.md

@@ -8,7 +8,8 @@ See the [v.x.y.z milestone](https://github.com/approvals/ApprovalTests.cpp/miles
     * Added support for custom main() function with doctest: see [Existing Project - with your main()](/doc/mdsource/UsingDoctest.source.md#existing-project---with-your-main) (#110, thank you @p-podsiadly)
     * Added support for Azure Pipelines, Azure DevOps Server and TFS CI systems (#117)
 * **Bug fixes**
-    * Code now compiles in clang and gcc with `-Wshadow` enabled (#111) 
+    * Code now compiles in clang and gcc with `-Wshadow` enabled (#111)
+    * Fixed some missing '\\' characters in the released header (#118)
 * **Other changes**
     * Updated to doctest 2.3.7 (#108, thank you @p-podsiadly)
     * New section in documentation: [How-to Guides](https://github.com/approvals/ApprovalTests.cpp/blob/master/doc/README.md#how-to-guides)