Help: Fix typos found by the rst-backticks hook

The corresponding `pre-commit` configuration is coming in the
separate MR.

Signed-off-by: Alex Turbov <i.zaufi@gmail.com>

Help/guide/tutorial/A Basic Starting Point.rst

@@ -400,7 +400,7 @@ include files.
 
 **Note:** Throughout this tutorial, we will refer to the project build and
 the project binary directory interchangeably. These are the same and are not
-meant to refer to a `bin/` directory.
+meant to refer to a ``bin/`` directory.
 
 We used :command:`target_include_directories` to specify
 where the executable target should look for include files.

Help/guide/tutorial/Packaging Debug and Release.rst

@@ -10,7 +10,7 @@ possible, however, to setup CPack to bundle multiple build directories and
 construct a package that contains multiple configurations of the same project.
 
 First, we want to ensure that the debug and release builds use different names
-for the libraries that will be installed. Let's use `d` as the
+for the libraries that will be installed. Let's use ``d`` as the
 postfix for the debug libraries.
 
 Set :variable:`CMAKE_DEBUG_POSTFIX` near the beginning of the top-level