Fix wording

Author: narsaynorath

docs/product/dashboards/widget-library/index.mdx

@@ -10,7 +10,7 @@ The widget library contains a collection of prebuilt widgets you can add to your
 
 The library includes the following widgets:
 
-- **Duration Distribution**: A multi-data series chart visualizing the distribution of transaction duration across various percentiles (p50, p75, and p95)
+- **Duration Distribution**: A multiple data series chart visualizing the distribution of transaction duration across various percentiles (p50, p75, and p95)
 - **High Throughput Transactions**: The top five transactions with the largest number of events, represented in an area chart
 - **LCP by Country**: Table showing the p75 of page load times for each country
 - **Miserable Users**: The total number of unique users who have experienced slow transactions (transaction duration greater than 1200ms)