Use proper emdash

Author: andreiborza

docs/platforms/javascript/guides/node/index.mdx

@@ -33,7 +33,7 @@ yarn add @sentry/node
 
 ## Configure
 
-Sentry should be initialized as early in your app as possible. It is essential that you call `Sentry.init` before you require any other modules in your application - otherwise, auto-instrumentation of these modules will _not_ work.
+Sentry should be initialized as early in your app as possible. It is essential that you call `Sentry.init` before you require any other modules in your application — otherwise, auto-instrumentation of these modules will _not_ work.
 
 Once this is done, Sentry's Node SDK captures unhandled exceptions as well as tracing data for your application.
 
@@ -43,7 +43,7 @@ Therefore, we recommend to create a file named `instrumentation.js` that imports
 
 If you set a `tracesSampleRate`, performance instrumentation will automatically be enabled for you. See <PlatformLink to="/performance/instrumentation/automatic-instrumentation">Automatic Instrumentation</PlatformLink> to learn about all the things that the SDK automatically instruments for you.
 
-You can also manually capture performance data - see <PlatformLink to="/performance/instrumentation/custom-instrumentation">Custom Instrumentation</PlatformLink> for details.
+You can also manually capture performance data — see <PlatformLink to="/performance/instrumentation/custom-instrumentation">Custom Instrumentation</PlatformLink> for details.
 
 ## Run