pip and setuptools are now specifically updated before building the project

.travis.yml

@@ -5,6 +5,8 @@ python:
   - "3.7"
   - "3.8"
 install:
+  - pip install --upgrade pip
+  - pip install --upgrade setuptools
   - pip install -r requirements.txt
 script:
   - coverage run -m unittest discover

youtube_transcript_api/_api.py

@@ -13,6 +13,7 @@ from ._errors import (
     CookiesInvalid
 )
 
+
 class YouTubeTranscriptApi(object):
     @classmethod
     def list_transcripts(cls, video_id, proxies=None, cookies=None):

youtube_transcript_api/_transcripts.py

@@ -170,7 +170,7 @@ class TranscriptList(object):
         """
         Finds a transcript for a given language code. Manually created transcripts are returned first and only if none
         are found, generated transcripts are used. If you only want generated transcripts use
-        find_manually_created_transcript instead.
+        `find_manually_created_transcript` instead.
 
         :param language_codes: A list of language codes in a descending priority. For example, if this is set to
         ['de', 'en'] it will first try to fetch the german transcript (de) and then fetch the english transcript (en) if