Minor updates to README.md

README.md

-# Introduction:
+# Introduction
 
 The SIB CSS is based on the responsive *bootstrap* framework with some custom enhancements. 
 It provides a good display on many devices (phones, tablets, laptops and desktop computers).
 
-A powerpoint document is also available on SIB drive:
+Documentation (guidlelines) on how the layout can be applied can be found in the following presentation:
 https://drive.sib.swiss/index.php/s/NVQY8hhsLfUH0C8
 
 
-# Guidelines:
+# Guidelines
 
 #### Page Header
 
@@ -25,7 +25,7 @@ If there are several institution URLs, SIB should always be _on the very left_.
 
 Currently, CSS classes are available for breadcrumbs, links, buttons, paginations, tables, and multi-columns.
 
-# sib-css-admin-sites package:
+# sib-css-admin-sites package
 
 The sib-css-admin-sites package provides examples using a minimal version of the new SIB CSS. 
 
@@ -37,7 +37,7 @@ with 2 types of displays (depending on users' needs):
 - logo on the top left
 - brand name on the top left
 
-# Comments:
+# Comments
 
 #### Footer