Update design.md with all operands

design.md

@@ -13,6 +13,7 @@
 - `$[value]` for using literals/immediate values
 - `;` for end of statement (mandatory)
 - `[label]:` for labels
+- `#[text]` for comments: any text is ignored till a newline (`\n`) is found
 - Elements must be separated by whitespace character
 	- Good: `add $2 $5 %A;`
 	- Bad: `add $2$5%A;`
@@ -25,16 +26,26 @@ Divide register A by 5 and store the result in register A:
 ## Reserved symbols
 
 The following whitespace characters are used to separate symbols:
-- space (' ')
-- tab ('\t')
-- return carriage ('\r')
-- newline ('\n')
+- space (` `)
+- tab (`\t`)
+- return carriage (`\r`)
+- newline (`\n`)
 
 The following characters are used as identifiers:
-- dollar ('$')
-- percentage ('%')
-- colon (':')
-- semicolon (';')
-- hash ('#')
+- dollar (`$`)
+- percentage (`%`)
+- colon (`:`)
+- semicolon (`;`)
+- hash (`#`)
 
 All operands are reserved keywords and can therefore NOT be used as labels.
+
+## Operands
+
+- `addi` add the first to the second argument and store the result in the third argument
+- `subi` subtract the first from the second argument and store the result in the third argument
+- `divi` divide the first by the second argument and store the result in the third argument
+- `muli` multiply the first by the second argument and store the result in the third argument
+- `shli` shift left the first argument by the number of positions given by the second argument and store the result in the third argument
+- `shri` shift right the first argument by the number of positions given by the second argument and store the result in the third argument
+- `jmp` jump to the label given by the first argument