fix(cli): add @storybook/addon-knobs in sb init on Mithril project …

…as it is listed in SB config template

https://github.com/storybookjs/storybook/blob/3dd714d3532687d958c41e093187b84ffca603ee/lib/cli/src/generators/MITHRIL/template-csf/.storybook/main.js

lib/cli/src/generators/MITHRIL/index.js

@@ -8,11 +8,18 @@ import {
 } from '../../helpers';
 
 export default async (npmOptions, { storyFormat = 'csf' }) => {
-  const [storybookVersion, actionsVersion, linksVersion, addonsVersion] = await getVersions(
+  const [
+    storybookVersion,
+    actionsVersion,
+    linksVersion,
+    knobsVersion,
+    addonsVersion,
+  ] = await getVersions(
     npmOptions,
     '@storybook/mithril',
     '@storybook/addon-actions',
     '@storybook/addon-links',
+    '@storybook/addon-knobs',
     '@storybook/addons'
   );
 
@@ -35,6 +42,7 @@ export default async (npmOptions, { storyFormat = 'csf' }) => {
     `@storybook/mithril@${storybookVersion}`,
     `@storybook/addon-actions@${actionsVersion}`,
     `@storybook/addon-links@${linksVersion}`,
+    `@storybook/addon-knobs@${knobsVersion}`,
     `@storybook/addons@${addonsVersion}`,
     ...babelDependencies,
   ]);