Fix small typo in getting started docs (langchain-ai#876)

Just noticed this little typo while reading the docs, thought I'd open a
PR!

Author: ryan-m-walker

docs/getting_started/getting_started.md

@@ -162,7 +162,7 @@ This is one of the simpler types of chains, but understanding how it works will
 
 `````{dropdown} Agents: Dynamically call chains based on user input
 
-So for the chains we've looked at run in a predetermined order.
+So far the chains we've looked at run in a predetermined order.
 
 Agents no longer do: they use an LLM to determine which actions to take and in what order. An action can either be using a tool and observing its output, or returning to the user.