Added resource section for telugu books (#7594)

* Added link to telugu language

Starting resources page for telugu language and adding it to the readme

* Added resource for C language in telugu 

In telugu branch instead of main branch

Author: repsick3r

Diff for: README.md

@@ -114,6 +114,7 @@ This project lists books and other resources grouped by genres:
 + [Spanish / español / castellano](books/free-programming-books-es.md)
 + [Swedish / Svenska](books/free-programming-books-sv.md)
 + [Tamil / தமிழ்](books/free-programming-books-ta.md)
++ [Telugu / తెలుగు](books/free-programming-books-te.md)
 + [Thai / ไทย](books/free-programming-books-th.md)
 + [Turkish / Türkçe](books/free-programming-books-tr.md)
 + [Ukrainian / Українська](books/free-programming-books-uk.md)

Diff for: books/free-programming-books-te.md

@@ -0,0 +1,8 @@
+### Index
+
+* [C](#c)
+
+
+### <a id="c"></a>C
+
+* [Introduction to C \| Telugu](https://www.computerintelugu.com/2012/11/cmenu.html) - Sivanaadh Baazi Karampudi