Fix duplicate text in documentation

[l-vo]

No description provided.

[greg0ire]

Hi 1.8 is no longer maintained:

annotations/.doctrine-project.json

Lines 17 to 41 in 5ce13d0

	"name": "1.10",
	"branchName": "1.10",
	"slug": "1.10",
	"aliases": [
	"current",
	"stable"
	],
	"current": true,
	"maintained": true
	},
	{
	"name": "1.9",
	"branchName": "1.9",
	"slug": "1.9",
	"aliases": [
	"latest"
	],
	"maintained": false
	},
	{
	"name": "1.8",
	"branchName": "1.8",
	"slug": "1.8",
	"maintained": false
	},

Retargeting to 1.10

[l-vo]

Retargeting to 1.10

@greg0ire thank you :)

[malarzm]

Thanks @l-vo!