site: add link icon to each element

For easy copying.

site/assets/icons/link-45deg.svg

@@ -0,0 +1,4 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-link-45deg" viewBox="0 0 16 16">
+  <path d="M4.715 6.542 3.343 7.914a3 3 0 1 0 4.243 4.243l1.828-1.829A3 3 0 0 0 8.586 5.5L8 6.086a1.002 1.002 0 0 0-.154.199 2 2 0 0 1 .861 3.337L6.88 11.45a2 2 0 1 1-2.83-2.83l.793-.792a4.018 4.018 0 0 1-.128-1.287z"/>
+  <path d="M6.586 4.672A3 3 0 0 0 7.414 9.5l.775-.776a2 2 0 0 1-.896-3.346L9.12 3.55a2 2 0 1 1 2.83 2.83l-.793.792c.112.42.155.855.128 1.287l1.372-1.372a3 3 0 1 0-4.243-4.243L6.586 4.672z"/>
+</svg>

site/layouts/_default/term.html

@@ -3,7 +3,8 @@
           <thead>
             <tr class="table-secondary">
               <th colspan="2">
-                <span class="">{{ .Params.title | markdownify }}</span>
+                {{ $linkIcon := resources.Get "icons/link-45deg.svg" | resources.Fingerprint }}
+                <span class=""><a href="#{{ .Params.slug }}"><img src="{{ $linkIcon.Permalink }}"></a>&nbsp;{{ .Params.title | markdownify }}</span>
                 {{- with .Params.required -}}
                 <div class="badge-required">
                   <span class="badge align-middle">Required</span>

site/package.json

@@ -10,7 +10,7 @@
     "build:site": "./bin/hugo/hugo",
     "build": "npm run build:css && npm run build:js && npm run clean && npm run copy:icons && npm run build:site",
     "clean": "rm assets/css/*.css.tmp assets/css/*.css.tmp.map",
-    "copy:icons": "cp node_modules/bootstrap-icons/icons/file-earmark-code.svg node_modules/bootstrap-icons/icons/file-earmark-spreadsheet.svg assets/icons",
+    "copy:icons": "cp node_modules/bootstrap-icons/icons/file-earmark-code.svg node_modules/bootstrap-icons/icons/file-earmark-spreadsheet.svg node_modules/bootstrap-icons/icons/link-45deg.svg assets/icons",
     "postinstall": "hugo-installer --version 0.92.1",
     "server": "./bin/hugo/hugo serve"
   },