Merge pull request #225 from ArnoStrouwen/docs

spelling

Author: ChrisRackauckas

docs/src/index.md

@@ -43,7 +43,7 @@ Pre-defined preconditioners would be a welcome addition.
 
 ## Reproducibility
 ```@raw html
-<details><summary>The documentation of this SciML package was build using these direct dependencies,</summary>
+<details><summary>The documentation of this SciML package was built using these direct dependencies,</summary>
 ```
 ```@example
 using Pkg # hide