updated READMEs

Author: Arun Persaud

nikola/data/themes/bootblog5-jinja/README.md

@@ -1,6 +1,3 @@
-This is a theme based on Bootstrap 4 and the [blog example](https://getbootstrap.com/docs/4.0/examples/blog/) by @mdo.
-
-Note that unlike previous versions of Bootstrap, icon fonts are not built-in.
-You can use Font Awesome for this.
+This is a theme based on Bootstrap 5 and the [blog example](https://getbootstrap.com/docs/5.0/examples/blog/) by @mdo.
 
 This theme **does not** support Bootswatch font/color schemes.

nikola/data/themes/bootstrap5-jinja/README.md

@@ -1,10 +1,7 @@
-This is a theme based on Bootstrap 4.
+This is a theme based on Bootstrap 5.
 
 The theme is a good building block for a site. It is based on a simple navbar +
-content layout. For a more blog-style layout, check out `bootblog4`.
-
-Note that unlike previous versions of Bootstrap, icon fonts are not built-in.
-You can use Font Awesome for this.
+content layout. For a more blog-style layout, check out `bootblog5`.
 
 This theme supports Bootswatch and HackerThemes font/color schemes
 through the `nikola subtheme` command.