Reword last para into more conventional English. (home-assistant#3505)

IanDarwin · fabaff · commit 62617b14a6a0 · 2017-10-03T20:18:47.000+02:00
diff --git a/source/_docs/installation.markdown b/source/_docs/installation.markdown
@@ -99,5 +99,5 @@ For more details about `hass`, please refer to the [tools section](/docs/tools/h
 
 If you're running a Linux-based platform, we suggest you follow the [VirtualEnv instructions](/docs/installation/virtualenv/) to avoid using `root`.
 
-It may be needed that you install additional library depending on the platforms/components you want to use.
+You may need to install additional libraries depending on the platforms/components you want to use.
 

Original file line number	Diff line number	Diff line change
@@ -99,5 +99,5 @@ For more details about `hass`, please refer to the [tools section](/docs/tools/h
`99`	`99`
`100`	`100`	If you're running a Linux-based platform, we suggest you follow the [VirtualEnv instructions](/docs/installation/virtualenv/) to avoid using `root`.
`101`	`101`
`102`		`-It may be needed that you install additional library depending on the platforms/components you want to use.`
	`102`	`+You may need to install additional libraries depending on the platforms/components you want to use.`
`103`	`103`