Add a little about HTML and about overlapping types

Author: davepeck

peps/pep-0750.rst

@@ -927,6 +927,22 @@ the language itself. Bringing the full power and generality of Python to bear on
 string processing tasks opens new possibilities for framework authors.
 
 
+Why another templating approach?
+================================
+
+The world of Python already has mature templating languages with wide adoption, 
+such as Jinja. Why build support for creating new templating systems?
+
+Projects such as Jinja are still needed in cases where the template is less part 
+of the software by the developers, and more part of customization by designers 
+or even content created by users, for example in a CMS.
+
+The trends in frontend development have treated templating as part of the 
+software and written by developers. They want modern language features and a 
+good tooling experience. PEP 750 envisions DSLs where the non-static parts are 
+Python: same scope rules, typing, expression syntax, and the like.
+
+
 Common Patterns Seen in Processing Templates
 ============================================