fixed html table extractor README

Author: x4nth055

web-scraping/html-table-extractor/README.md

@@ -1,7 +1,7 @@
 # [How to Convert HTML Tables into CSV Files in Python](https://www.thepythoncode.com/article/convert-html-tables-into-csv-files-in-python)
 To run this:
 - `pip3 install -r requirements.txt`
-- To extract all tables from this [wikipedia page]():
+- To extract all tables from this [wikipedia page](https://en.wikipedia.org/wiki/List_of_countries_and_dependencies_by_population):
     ```
     python html_table_extractor.py https://en.wikipedia.org/wiki/List_of_countries_and_dependencies_by_population
     ```