[DOC] The "git-clone" task document about the default value of the "userHome" parameter is not right

[ma0ziyuan]

Expected Behavior

userHome: The user's home directory. (default: "/home/git")

Actual Behavior

userHome: The user's home directory. (default: "/tekton/home")

Steps to Reproduce the Problem

1.open the url "https://hub.tekton.dev/tekton/task/git-clone" in your web browser
2.the version is 0.9(latest)
3. the last line of the paragraph regarding the description of the Task Parameters
4. we can see the default value in the task yaml file:

catalog/task/git-clone/0.9/git-clone.yaml

Lines 106 to 110 in ba4746a

	- name: userHome
	description: |
	Absolute path to the user's home directory.
	type: string
	default: "/home/git"

Additional Info

[anilabhabaral]

Send PR 1290