That's pretty much what you get when you follow what Paul said - here's a shorter version than going through the help center, and then an even shorter version.
Go directly to
https://publish.twitter.com/Under "What would you like to embed", enter @YourTwitterHandle (obviously replacing YourTwitterHandle). Click on the right arrow.
Click Embedded Timeline.
You may want to just take what that gives you and play around with it or click on the customization options, particularly to set the height and width and to click on "opt out of tailoring twitter" (see the explanatory text there).
What you then get is something like this (I've formatted for better readability):
<a class="twitter-timeline"
data-width="520"
data-height="600"
data-dnt="true"
href="https://twitter.com/LexMAWeather?ref_src=twsrc%5Etfw">
Tweets by LexMAWeather</a>
<script async src="https://platform.twitter.com/widgets.js" charset="utf-8"></script>
Or, you can skip all that and just start with that code and edit to fit your handle and size requirements.
There are a few other options you can add as explained here:
https://developer.twitter.com/en/docs/twitter-for-websites/timelines/overview.htmlFor mine, right below the "data-dnt" I added:
data-chrome="nofooter noborders"
Don't set "noscrollbar" or you'll just defeat what you are looking for.
I don't have the "?ref_src" option in my URLs - not sure if I removed them or if, at the time I created the widgets, the tool didn't include that.
I think that's it, but let me know if I screwed something up.