Update julia download link installation.md

Author: FrancescaWatson

docs/src/manuals/user_guide/installation.md

@@ -1,7 +1,7 @@
 ## Installation
 
 To install Julia, first visit the official Julia website at <https://julialang.org> and
-[download](https://julialang.org/downloads/ ) the appropriate installer for your operating system (Windows, macOS, or
+[download](https://julialang.org/downloads/) the appropriate installer for your operating system (Windows, macOS, or
 Linux).  After installation, you can verify it by opening a terminal or command prompt and typing julia to start the
 Julia REPL (Read-Eval-Print Loop). This will confirm that Julia is correctly installed and ready for use.
 
@@ -12,4 +12,4 @@ using Pkg; Pkg.add("BattMo")
 ```
 
 For those which are not used to Julia, you should be aware that julia uses JIT compilation. The first time the code is
-run, you will therefore experience a compilation time which will not be present in the further runs.
+run, you will therefore experience a compilation time which will not be present in the further runs.