index: remove extraneous </p>

It was causing very loose spacing in the bullet list.

Change-Id: I090aea725c2f1fc867592746172b98913209d50c
Reviewed-on: https://go-review.googlesource.com/c/wiki/+/549797
Reviewed-by: Russ Cox <[email protected]>

Author: rsc

index.md

@@ -8,7 +8,7 @@ template: true
 <ul>
 {{- range pages "/wiki/*.md" -}}
 {{- if and .title (ne .URL "/wiki/") -}}
-<li class="wikititle">{{$short := strings.TrimPrefix .URL "/wiki/"}}<a href="{{.URL}}">{{$short}}{{if ne $short .title}} (“{{.title}}”){{end}}</a></p>
+<li class="wikititle">{{$short := strings.TrimPrefix .URL "/wiki/"}}<a href="{{.URL}}">{{$short}}{{if ne $short .title}} (“{{.title}}”){{end}}</a>
 {{end -}}
 {{- end -}}
 </ul>