docs: STYLE GUIDE attribute ordering convention spacing corrected

Author: BhoomishGupta

STYLE_GUIDE.md

@@ -64,12 +64,12 @@ focus on the semantics of the proposed changes rather than style and formatting.
 * For module procedures, it is recommended to declare attributes before the module keyword for better retro compatibility (Projects using CMake versions lower than CMake 3.25.0 are concerned see [Spurious modules](https://gitlab.kitware.com/cmake/cmake/-/issues/18427#note_983426)).
 Prefer the following pattern:
 ```
-<attribute> <attribute> module <function/subroutine> <name>
-```
-instead of:
-```
-module <attribute> <attribute> <function/subroutine> <name>
-```
+  <attribute> <attribute> module <function/subroutine> <name>
+  ```
+  instead of:
+  ```
+  module <attribute> <attribute> <function/subroutine> <name>
+  ```
 ## End <scope> block closing statements
 
 Fortran allows certain block constructs or scopes to include the name of the program unit in the end statement.