update md files

Author: jvdp1

STYLE_GUIDE.md

@@ -20,9 +20,9 @@ This style guide is a living document and proposed changes may be adopted after
 * If the interface and implementation is split using submodules the implementation submodule file should have the same name as the
   interface (parent) module but end in `_implementation`
   E.g., `string_class.f90` and `string_class_implementation.f90`
-* Tests should be added in the `tests` subdirectory and have the same name as the module they are testing with the `test_` prefix
+* Tests should be added in the `test` subdirectory and have the same name as the module they are testing with the `test_` prefix
   added
-  E.g., `string_class.f90` and `tests/test_string_class.f90`
+  E.g., `string_class.f90` and `test/test_string_class.f90`
 
 ## Indentation & whitespace
 

WORKFLOW.md

@@ -81,8 +81,8 @@ To add tests, the macro ``ADDTEST`` should be used instead of the CMake function
 ``add_test``, the macro hides creation of the executable target, linking against the 
 main library target and registering the test.
 The tests themselves are defined as standalone executables in the subdirectories
-in ``src/tests``, a new subdirectory with tests has to be registred in
-``src/tests/CMakeLists.txt``.
+in ``test``, a new subdirectory with tests has to be registered in
+``test/CMakeLists.txt``.
 
 The source tree should be considered read-only. References to ``PROJECT_SOURCE_DIR``
 and ``CMAKE_CURRENT_SOURCE_DIR`` should only be used for accessing source files,

doc/specs/stdlib_hash_procedures.md

@@ -1623,7 +1623,7 @@ various hash functions. The other is a comparison of the outputs of
 the Fortran hash functions, with the outputs of the C and C++ hash
 procedures that are the inspiration for the Fortran hash functions.
 
-In the `src/test/hash_functions_perf` subdirectory, the Fortran Standard
+In the `test/hash_functions_perf` subdirectory, the Fortran Standard
 Library provides two performance test codes for
 the hash functions of `stdlib_hash_32bit` and
 `stdlib_hash_64bit`, `test_32_bit_hash_performance` and
@@ -1726,7 +1726,7 @@ severely impact the performance of  `nmhash32`, `nmhash32x`,
 `water_hash`, `pengy_hash`, and `spooky_hash` relative to
 `fnv_1_hash` and `fnv_1a_hash`.
 
-In the `src/test/hash_functions` subdirectory, the Fortran
+In the `test/hash_functions` subdirectory, the Fortran
 Standard Library contains codes to test the validity of
 the Fortran codes against the original C and C++ codes. It consists of one
 executable `test_hash_functions` that