update specs

Author: jalvesz

doc/specs/stdlib_ascii.md

@@ -38,7 +38,7 @@ Converts input character variable to all lowercase.
 
 #### Class
 
-Pure function.
+Elemental function.
 
 #### Argument
 
@@ -70,7 +70,7 @@ Converts input character variable to all uppercase.
 
 #### Class
 
-Pure function.
+Elemental function.
 
 #### Argument
 
@@ -107,7 +107,7 @@ or numeral present next to either of its 2 ends.
 
 #### Class
 
-Pure function.
+Elemental function.
 
 #### Argument
 
@@ -142,7 +142,7 @@ transformed to lowercase.
 
 #### Class
 
-Pure function.
+Elemental function.
 
 #### Argument
 
@@ -174,7 +174,7 @@ Reverses the order of all characters in the input character type.
 
 #### Class
 
-Pure function.
+Elemental function.
 
 #### Argument