Make theme compatible with hugoBasicExamples

Signed-off-by: hossainemruz <emruz@appscode.com>

layouts/partials/helpers/get-author-image.html

@@ -1,5 +1,9 @@
 {{ $authorImage:= "/assets/images/default-avatar.svg"}}
-{{ if isset .author "image" }}
-    {{ $authorImage = .author.image }}
+{{ if eq (printf "%T" .Params.author ) "maps.Params" }}
+    {{ with .Params.author }}
+        {{ if .image }}
+            {{ $authorImage = .image }}
+        {{ end }}
+    {{ end }}
 {{ end }}
 {{ return $authorImage }}

layouts/partials/helpers/get-author-name.html

@@ -1,5 +1,9 @@
 {{ $authorName:= "John Doe"}}
-{{ if  isset .author "name" }}
-    {{ $authorName = .author.name }}
+{{ if eq (printf "%T" .Params.author ) "maps.Params" }}
+    {{ with .Params.author }}
+        {{ if .name }}
+        {{ $authorName = .name }}
+        {{ end }}
+    {{ end }}
 {{ end }}
 {{ return $authorName }}

layouts/partials/helpers/get-categories.html

@@ -1,5 +1,5 @@
 {{ $categories:= ""}}
-{{ if  .categories }}
-    {{ $categories = delimit .categories "," }}
+{{ if  .Params.categories }}
+    {{ $categories = delimit .Params.categories "," }}
 {{ end }}
 {{ return $categories }}

layouts/partials/helpers/get-hero.html

@@ -1,5 +1,5 @@
 {{ $heroImage:= "/assets/images/default-hero.jpg"}}
-{{ if  .hero }}
-    {{ $heroImage = .hero }}
+{{ if  .Params.hero }}
+    {{ $heroImage = .Params.hero }}
 {{ end }}
 {{ return $heroImage }}

layouts/partials/helpers/get-profile-image.html

@@ -1,5 +0,0 @@
-{{ $profileImage:= "/assets/images/default-avatar.svg"}}
-{{ if .Site.Data.home.image }}
-    {{ $profileImage = .Site.Data.home.image }}
-{{ end }}
-{{ return $profileImage }}