feat(geo): add docs [PART-10] (#1289)

* chore(docs): increse padding to avoid crop table on API page

* chore(docs): restore margin on code sample

* chore(docs): add a specific className for multi components API

* docs(GeoSearch)

* docs(GeoSearch): rename HTMLMarker to CustomMarker

* docs(GeoSearch): rename package

* chore(maps): update package description

* fi(GeoSearch): update Storybook link

* docs(GeoSearch): update wording

docgen/src/stylesheets/components/_documentation.sass

@@ -3,7 +3,7 @@ $offset-height: 60px
 
 .documentation-section,
 .examples-section
-  padding-bottom: 300px
+  padding-bottom: 320px
 
   .container
     article
@@ -136,7 +136,6 @@ $offset-height: 60px
       background: #fff
       border: 1px solid #d8d8d8
       border-radius: 2px 2px 0 0
-      margin: -8px 0 0
       padding: 0.75em 1em
       font-family: $paragraphs-font-family
       border-radius: 6px 6px 0 0
@@ -202,6 +201,10 @@ $offset-height: 60px
         height: $offset-height
         // margin: (-$offset-height) 0 0
 
+    .sub-component-title
+      &:before
+        height: 10px
+
     .anchor
       margin-left: .2em
       display: inline