Move the notes up

Author: chudur-budur

docs/source/user_guide/config.rst

@@ -3,7 +3,21 @@
 Configuration Options for ``numba-dpex``
 ========================================
 
-``numba-dpex`` provides a set of environment variables and flags for configuring different aspects of the compilation, debugging and execution of programs. The configuration flags of ``numba-dpex`` are mostly inherited from those of Numba*. They are defined in :file:`numba_dpex/core/config.py` and are listed as follows:
+``numba-dpex`` provides a set of environment variables and flags for configuring different aspects of the compilation, debugging and execution of programs. The configuration flags of ``numba-dpex`` are mostly inherited from those of Numba*. They are defined in :file:`numba_dpex/core/config.py`.
+
+.. note::
+    In order to enable/disable each of the configuration flags, a ``NUMBA_DPEX``
+    prefix needs to be appended before each variable. For example, in order to
+    turn ``SAVE_IR_FILES`` flag on, it needs to be passed as ``NUMBA_DPEX_SAVE_IR_FILES=1``
+
+For example:
+
+.. code-block:: bash
+
+    user@host:~/NUMBA_DPEX_SAVE_IR_FILES=1 python numba_dpex_program.py
+
+
+The list of available configuration flags are listed as follows:
 
 ``SAVE_IR_FILES``:
     A flag to save the Numba* intermediate representation (IR) files generated by the compiler. Set to ``0`` by default.
@@ -37,14 +51,3 @@ Configuration Options for ``numba-dpex``
 
 ``STATIC_LOCAL_MEM_PASS``:
     A flag to turn on the ``ConstantSizeStaticLocalMemoryPass`` in the kernel pipeline. The pass is turned off by default.
-
-.. note::
-    In order to enable/disable each of the configuration flags, a ``NUMBA_DPEX``
-    prefix needs to be appended before each variable. For example, in order to
-    turn ``SAVE_IR_FILES`` flag on, it needs to be passed as ``NUMBA_DPEX_SAVE_IR_FILES=1``
-
-For example:
-
-.. code-block:: bash
-
-    user@host:~/NUMBA_DPEX_SAVE_IR_FILES=1 python numba_dpex_program.py