fix unclosed <div> in method.tmpl

[rdipardo]

Description

b1ec5d0 introduced a malformed closing tag in method.tmpl.

Using the Pair Tag Highlighter for Geany, the incomplete element looked like this:

This patch corrects the markup:

Type of change

Please mark options that is/are relevant.

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update
• Other (if so, then explain below briefly)

[ankitskvmdam]

Thanks! I really appreciate it.