Clear unneeded bootsrap themes files. Change Readme

assets/bs/litera/_bootswatch.scss

@@ -1,98 +0,0 @@
-// Litera 5.3.8
-// Bootswatch
-
-
-// Variables
-
-// Navbar
-
-.navbar {
-  font-size: $font-size-sm;
-}
-
-// Typography
-
-p {
-  font-family: $font-family-serif;
-}
-
-blockquote {
-  font-style: italic;
-}
-
-footer {
-  font-size: $font-size-sm;
-}
-
-.lead {
-  font-family: $font-family-sans-serif;
-  color: $gray-600;
-}
-
-// Tables
-
-table,
-.table {
-  font-size: $font-size-sm;
-}
-
-// Navs
-
-.nav,
-.breadcrumb,
-.pagination {
-  font-size: $font-size-sm;
-}
-
-.dropdown-menu {
-  font-size: $font-size-sm;
-}
-
-// Indicators
-
-.alert {
-  font-size: $font-size-sm;
-  color: $white;
-
-  &,
-  p {
-    font-family: $font-family-sans-serif;
-  }
-
-  a,
-  .alert-link {
-    font-weight: 400;
-    color: $white;
-    text-decoration: underline;
-  }
-
-  @each $color, $value in $theme-colors {
-    &-#{$color} {
-      @if $enable-gradients {
-        background: $value linear-gradient($value, mix($body-bg, $value, 15%)) repeat-x;
-      } @else {
-        background-color: $value;
-      }
-    }
-  }
-
-  &-light {
-    &,
-    a,
-    .alert-link {
-      color: $body-color;
-    }
-  }
-}
-
-.badge {
-  &.bg-light {
-    color: $dark;
-  }
-}
-
-// Containers
-
-.list-group {
-  font-size: $font-size-sm;
-}

assets/bs/litera/_variables.scss

@@ -1,97 +0,0 @@
-// Litera 5.3.8
-// Bootswatch
-
-$theme: "litera" !default;
-
-//
-// Color system
-//
-
-$white:    #fff !default;
-$gray-100: #f8f9fa !default;
-$gray-200: #e9ecef !default;
-$gray-300: #ddd !default;
-$gray-400: #ced4da !default;
-$gray-500: #adb5bd !default;
-$gray-600: #868e96 !default;
-$gray-700: #495057 !default;
-$gray-800: #343a40 !default;
-$gray-900: #212529 !default;
-$black:    #000 !default;
-
-$blue:    #4582ec !default;
-$indigo:  #6610f2 !default;
-$purple:  #6f42c1 !default;
-$pink:    #e83e8c !default;
-$red:     #d9534f !default;
-$orange:  #fd7e14 !default;
-$yellow:  #f0ad4e !default;
-$green:   #02b875 !default;
-$teal:    #20c997 !default;
-$cyan:    #17a2b8 !default;
-
-$primary:       $blue !default;
-$secondary:     $gray-500 !default;
-$success:       $green !default;
-$info:          $cyan !default;
-$warning:       $yellow !default;
-$danger:        $red !default;
-$light:         $gray-100 !default;
-$dark:          $gray-800 !default;
-
-$min-contrast-ratio:   1.85 !default;
-
-// Body
-
-$body-color:                $gray-800 !default;
-
-// Fonts
-
-// stylelint-disable value-keyword-case
-$font-family-sans-serif:      -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji" !default;
-$font-family-serif:           Georgia, Cambria, "Times New Roman", Times, serif !default;
-// stylelint-enable
-
-$font-size-base:              1.1rem !default;
-$headings-font-weight:        700 !default;
-
-// Tables
-
-$table-color:                 initial !default;
-
-$table-border-color:          rgba(0, 0, 0, .1) !default;
-
-$table-bg-scale:              0% !default;
-
-// Buttons
-
-$input-btn-padding-y:         .5rem !default;
-$input-btn-padding-x:         1.1rem !default;
-$btn-font-family:             $font-family-sans-serif !default;
-$btn-font-size:               .875rem !default;
-$btn-font-size-sm:            .688rem !default;
-
-$btn-border-radius:           1.078em !default;
-$btn-border-radius-lg:        2.688em !default;
-$btn-border-radius-sm:        .844em !default;
-
-// Forms
-
-$input-border-color:                    rgba(0, 0, 0, .1) !default;
-$input-group-addon-bg:                  $gray-200 !default;
-
-// Navbar
-
-// Tooltips
-
-$tooltip-font-size:                 11px !default;
-
-// Badges
-
-$badge-font-weight:                 400 !default;
-$badge-padding-y:                   .6em !default;
-$badge-padding-x:                   1.2em !default;
-
-// Alerts
-
-$alert-border-width:                0 !default;