changed formatting of generator option table
@@ -133,8 +133,8 @@ riscv_instr_group_t supported_isa[] = {RV32I, RV32M, RV64I, RV64M};
### Runtime options of the generator
-| Option | Description | default |
-|----------|:-------------:|:------:|
+| Option | Description | Default |
+|:---------------------------:|:-----------------------------------------------:|:-------:|
| num_of_tests | Number of assembly tests to be generated | 1 |
| num_of_sub_program | Number of sub-program in one test | 5 |
| instr_cnt | Instruction count per test | 200 |
