fix issues in examples in specs

Author: jvdp1

doc/specs/stdlib_error.md

@@ -77,16 +77,16 @@ program demo_check3
     integer :: a = 1
     ! If a /= 5,  prints 'a == 5 failed.', but doesn't stop the program.
     call check(a == 5, msg='a == 5 failed.', warn=.true.)
-end program demo_check2
+end program demo_check3
 ```
 ```fortran
-program demo_check3
+program demo_check4
     use stdlib_error, only: check
     implicit none
     integer :: a = 1
     ! If a /= 5, stops the program with exit code 77 and prints 'a == 5 failed.'
     call check(a == 5, msg='a == 5 failed.', code=77)
-end program demo_check3
+end program demo_check4
 ```
 
 ### `error_stop` - aborts the program

doc/specs/stdlib_hash_procedures.md

@@ -1016,7 +1016,7 @@ program demo_universal_mult_hash
   hash = universal_mult_hash(source, seed, 6)
   array1(hash) = source
   print *, seed, hash, array1
-end program demo_odd_random_integer
+end program demo_universal_mult_hash
 ```
 
 #### `water_hash`- calculates a hash code from a key and a seed
@@ -1175,7 +1175,7 @@ E. Knuth. It multiplies the `key` by the odd valued approximation to
 ##### Example
 
 ```fortran
-program demo_fibonacci_hash
+program demo_fibonacci_hash_64
   use stdlib_hash_64bit, only: fibonacci_hash
   use iso_fortran_env, only: int64
   implicit none
@@ -1187,7 +1187,7 @@ program demo_fibonacci_hash
   hash = fibonacci_hash(source, 6)
   array1(hash) = source
   print *, hash
-end program demo_fibonacci_hash
+end program demo_fibonacci_hash_64
 ```
 
 #### `FNV_1`- calculates a hash code from a key
@@ -1241,7 +1241,7 @@ function for character strings.
 ##### Example
 
 ```fortran
-program demo_fnv_1_hash
+program demo_fnv_1_hash_64
   use stdlib_hash_64bit, only: fnv_1_hash
     use iso_fortran_env, only: int64
   implicit none
@@ -1250,7 +1250,7 @@ program demo_fnv_1_hash
   array1 = [ 5, 4, 3, 1, 10, 4, 9]
   hash = fnv_1_hash(array1)
   print *, hash
-end program demo_fnv_1_hash
+end program demo_fnv_1_hash_64
 ```
 
 
@@ -1304,7 +1304,7 @@ function for character strings.
 ##### Example
 
 ```fortran
-program demo_fnv_1a_hash
+program demo_fnv_1a_hash_64
   use stdlib_hash_64bit, only: fnv_1a_hash
   use iso_fortran_env, only: int64
   implicit none
@@ -1313,7 +1313,7 @@ program demo_fnv_1a_hash
   array1 = [ 5, 4, 3, 1, 10, 4, 9]
   hash = fnv_1a_hash(array1)
   print *, hash
-end program demo_fnv_1a_hash
+end program demo_fnv_1a_hash_64
 ```
 
 
@@ -1596,7 +1596,7 @@ It multiplies the `key` by `seed`, and returns the
 
 
 ```fortran
-program demo_universal_mult_hash
+program demo_universal_mult_hash_64
   use stdlib_hash_32bit, only: odd_random_integer, &
     universal_mult_hash
   use iso_fortran_env, only: int64
@@ -1611,7 +1611,7 @@ program demo_universal_mult_hash
   hash = universal_mult_hash(source, seed, 6)
   array1(hash) = source
   print *, seed, hash, array1
-end program demo_universal_mult_hash
+end program demo_universal_mult_hash_64
 ```
 
 

doc/specs/stdlib_quadrature.md

@@ -222,15 +222,15 @@ If not specified, the default integral is -1 to 1.
 ### Example
 
 ```fortran
-program integrate
+program demo_gauss_legendre
 	use iso_fortran_env, dp => real64
 	implicit none
 
 	integer, parameter :: N = 6
 	real(dp), dimension(N) :: x,w
 	call gauss_legendre(x,w)
 	print *, "integral of x**2 from -1 to 1 is",  sum(x**2 * w)
-end program
+end program demo_gauss_legendre
 ```
 
 ## `gauss_legendre_lobatto` - Gauss-Legendre-Lobatto quadrature nodes and weights
@@ -268,13 +268,13 @@ If not specified, the default integral is -1 to 1.
 ### Example
 
 ```fortran
-program integrate
+program demo_gauss_legendre_lobatto
 	use iso_fortran_env, dp => real64
 	implicit none
 
 	integer, parameter :: N = 6
 	real(dp), dimension(N) :: x,w
 	call gauss_legendre_lobatto(x,w)
 	print *, "integral of x**2 from -1 to 1 is",  sum(x**2 * w)
-end program
+end program demo_gauss_legendre_lobatto
 ```