fix: addonInstance typo

Author: northword

src/config.ts

@@ -73,7 +73,7 @@ export async function loadConfig(file?: string): Promise<Config> {
       ghOwner: owner,
       ghRepo: repo,
       addonRef: pkg.config?.addonRef || _.kebabCase(addonName),
-      addonInstance: pkg.config?.addonInstence || _.camelCase(addonName),
+      addonInstance: pkg.config?.addonInstance || _.camelCase(addonName),
       prefsPrefix: `extensions.zotero.${addonRef}`,
       xpiName: xpiName,
       releasePage: releasePage,