add missing "and" (#5227)

Signed-off-by: Matthew Fisher <matt.fisher@microsoft.com>

docs/chart_template_guide/variables.md

@@ -98,10 +98,7 @@ data:
 
 Variables are normally not "global". They are scoped to the block in which they are declared. Earlier, we assigned `$relname` in the top level of the template. That variable will be in scope for the entire template. But in our last example, `$key` and `$val` will only be in scope inside of the `{{range...}}{{end}}` block.
 
-However, there is one variable that is always global - `$` - this
+However, there is one variable that is always global - `$` - this variable will always point to the root context. This can be very useful when you are looping in a range and need to know the chart's release name.
-variable will always point to the root context.  This can be very
-useful when you are looping in a range need to know the chart's release
-name.
 
 An example illustrating this:
 ```yaml