python: update releases 3.6, 3.7, 3.8

lib/docs/scrapers/python.rb

@@ -23,22 +23,23 @@ module Docs
       Licensed under the PSF License.
     HTML
 
+    # mkdir -p docs/python~3.8 && cd docs/python~3.8 && curl -L https://docs.python.org/3.8/archives/python-3.8.6-docs-html.tar.bz2 | tar xj --strip-components=1
     version '3.8' do # docs.python.org/3.8/download.html
-      self.release = '3.8.1'
+      self.release = '3.8.6'
       self.base_url = 'https://docs.python.org/3.8/'
 
       html_filters.push 'python/entries_v3', 'sphinx/clean_html', 'python/clean_html'
     end
 
     version '3.7' do # docs.python.org/3.7/download.html
-      self.release = '3.7.6'
+      self.release = '3.7.9'
       self.base_url = 'https://docs.python.org/3.7/'
 
       html_filters.push 'python/entries_v3', 'sphinx/clean_html', 'python/clean_html'
     end
 
     version '3.6' do # docs.python.org/3.6/download.html
-      self.release = '3.6.10'
+      self.release = '3.6.12'
       self.base_url = 'https://docs.python.org/3.6/'
 
       html_filters.push 'python/entries_v3', 'sphinx/clean_html', 'python/clean_html'