Document string literals

Assembler-directives.md

@@ -92,6 +92,27 @@ mynumber: DW 0x0000
                       ;;       use [] to reference the contents of the memory
 ```
 
+
+### String literals
+
+```asm
+my_str: DW "Hello"
+
+.text
+MOV A, [my_str] ; Value of A is now 'H'
+```
+
+
+### Character literals
+// NOT IMPLEMENTED
+
+
+You can combine any type of literal values in a single line, for example:
+
+```asm
+DW "some string", 123, "another string", 0
+```
+
 ## DUP
 The `DUP` directive (Duplicate) is used as operand for the `DW` directive. The syntax:
 ```s
@@ -104,11 +125,6 @@ It can only be used in combination with the `DW` directive
 ## Sections
 // TODO
 
-## Strings
-// TODO
-
-## Characters
-// NOT IMPLEMENTED
 
 ## ORG