add multiple last names in bibliography (alshedivat#905)

Multiple last names can be defined to be highlighted in the bibliography
(alshedivat#904)

README.md

@@ -367,13 +367,13 @@ You can also add new `*.bib` files and customize the look of your publications h
 
 <details><summary>(click to expand) <strong>Author annotation:</strong></summary>
 
-In publications, the author entry for yourself is identified by string `scholar:last_name` and string array `scholar:first_name` in `_config.yml`:
+In publications, the author entry for yourself is identified by string array `scholar:last_name` and string array `scholar:first_name` in `_config.yml`:
 ```
 scholar:
-  last_name: Einstein
+  last_name: [Einstein]
   first_name: [Albert, A.]
 ```
-If the entry matches the last name and one form of the first names, it will be underlined.
+If the entry matches one form of the last names and the first names, it will be underlined.
 Keep meta-information about your co-authors in `_data/coauthors.yml` and Jekyll will insert links to their webpages automatically.
 The coauthor data format in `_data/coauthors.yml` is as follows,
 ```

_layouts/bib.html

@@ -41,7 +41,7 @@
           {%- for author in entry.author_array limit: author_array_limit -%}
             {%- assign author_is_self = false -%}
             {%- assign author_last_name = author.last | remove: "¶" | remove: "&" | remove: "*" | remove: "†" | remove: "^" -%}
-            {%- if author_last_name == site.scholar.last_name -%}
+            {%- if site.scholar.last_name contains author_last_name -%}
               {%- if site.scholar.first_name contains author.first -%}
                 {%- assign author_is_self = true -%}
               {%- endif -%}