update index.md of how-to section

docs/en/how-to/index.md

@@ -7,10 +7,9 @@ Figure: Documentation framework.{class="align-right" style="width:50%"}
 
 ![](../images/documentation-framework.svg)
 
+The how-to section covers topics such as [importing stock data](../reference/file/import/csv-import.md), [reinvesting dividends](./handling-choice-dividend.md), recording [stock splits](./recording-stock-split.md) and [spin-offs](./recording-spin-off.md), [downloading historical data](./downloading-historical-prices/index.md) from various sources, and many more. Check the sidebar or click the <span style="color:red">:material-menu:</span> menu to view all topics.
 
-This how-to section of this manual is designed to help you to use all features and functions of the Portfolio Performance program in a real working context.  Unlike the "Getting-started" section, which is more general and uses simplified examples, the how-to section shows you how to handle the program in a real environment with real data.
-
-The how-to section covers topics such as [importing stock data](../reference/file/import/csv-import.md), [reinvesting dividends](./handling-choice-dividend.md), recording [stock splits](./recording-stock-split.md) and [spin-offs](./recording-spin-off.md), [downloading historical data](./downloading-historical-prices/index.md) from various sources, and many more.
+This how-to section is designed to help you use all features and functions of the *Portfolio Performance* program in a real working context.  Unlike the "Getting-started" section, which is more general and uses simplified examples, the how-to section shows you how to handle the program in a real environment with real data.
 
 The how-to section is not a substitute for the tutorials, which provide a more comprehensive and pedagogical introduction to the program. Nor is it a substitute for the basic concepts and the reference manual sections, which explain the theoretical foundations and the technical details of the program. The how-to section is meant to complement these other sections by providing practical guidance and tips for using the program effectively.