!155 Fix the issue "Not precise location in the docs".

Merge pull request !155 from ZhengyuhangHans/fixDocsPage20200505

themes/project/layouts/partials/scripts.html

@@ -143,5 +143,17 @@
                 showNav();
             }
         });
+        $(' a[href^="#"][href!="#"]').click(function () {
+            var target = document.getElementById(decodeURI(this.hash).split('#')[1]);
+            if (!target) {
+                return;
+            }
+            var targetOffset = $(target).offset().top - 140 + 'px';
+            $('html,body').animate({
+                scrollTop: targetOffset
+            },
+                300);
+            return false;
+        });
     });
 </script>
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