fix: formatted sparse checkout design

Signed-off-by: Asish Kumar <[email protected]>

research/design-doc/sparse_checkout_asishkumar.md

@@ -24,7 +24,6 @@ kpm add --subdir 1.21/* k8s
 
 This command will download the `1.21` directory and all its contents from the `k8s` repository hosted in https://github.com/kcl-lang/modules
 
-
 The `kcl.mod` file of the users project will also contain an array of path to the subdirectories. 
 
 ```
@@ -56,7 +55,6 @@ This process will involve using the `sparse-checkout` feature of git.
 
 Whenever we want to access the subdirectory using any command, we can refer to `kcl.mod` file of the project and iterate over the `subdir` array to get the path to the subdirectory. The `kcl.mod` file will automatically get updated whenever `kpm add` command is run.
 
-
 ### Additional modifications
 
 To avoid creating a new root for each subdirectory download, I can add some check functions.
@@ -65,4 +63,4 @@ To avoid creating a new root for each subdirectory download, I can add some chec
 
 1. https://medium.com/@marcoscannabrava/git-download-a-repositorys-specific-subfolder-ceeabc6023e2
 2. https://pkg.go.dev/github.com/go-git/go-git/v5
-3. https://pkg.go.dev/github.com/hashicorp/go-getter
+3. https://pkg.go.dev/github.com/hashicorp/go-getter