app/views/layouts/application.html.erb modified to add NAV links
app/views/static_pages/home.html.erb : content add to page
added gem<bootstrap-sass to gemfile; rails.png >> app/assests/images/
 config/application.rb : modified to make bootstrap-sass compatible with the asset pipeline
added app/assets/stylesheets/custom/css/scss <to be used by bootstrap-sass gem>
app/assets/stylesheets/custom/css/scss >> univesral styling
app/assets/stylesheets/custom/css/scss >> more css added for nice topography
app/assets/stylesheets/custom/css/scss >> adding css for the logo
app/views/layouts/application.html.erb : modified to use partials
a partial added for html shim <app/views/layouts/_shim.html.erb>
a partial added for html site header <app/views/layouts/_header.html.erb>
partial for footer added and custom.css.scss modified to style footer
footer styling changed to nested style in custom.css.scss
variable : #999; added to custom.css.scss
sass variable  used instead of : #999; added to custom.css.scss
initial custom.css.scss converted fully to nesting and use of variables
added app/views/static_pages/contact.html.erb: made all configurations in controller,routes,spec
syntax for routes changed in static_pages_spec.rb and routes.rb also modified
partial _header.html.erb modified to include actual routes instead of '#'
 partial _footer.html.erb modified to include actual routes