fix markup

Author: markgeejw

source/rest-api/design.rst

@@ -5,7 +5,7 @@ The Design API provided by OpenProtein.ai builds on top of our predictive models
 
 Currently, we support the following design algorithms:
 
-- **Genetic Algorithm** - Evolutionary optimization for sequence design using trained `predictors`
+- **Genetic Algorithm** - Evolutionary optimization for sequence design using trained ``predictors``
 - **RFdiffusion** - Diffusion-based structure generation for motif scaffolding, binder design, and symmetric assemblies
 - **BoltzGen** - Advanced diffusion model for protein structure and sequence design, supporting protein-ligand complexes, multi-chain assemblies, and cyclic peptides