docs: add xz as dependency

Add the missing dependency `xz`

README.md

@@ -28,6 +28,10 @@ Author: Christoph Daniel Miksche (m5e.de)
 
 Uses python version 3
 
+
+## Dependencies
+Ensure `pip3`, `setuptools`, `xz-utils` and `wheel` dependencies are installed on the system you are running this script in. (Most Linux OS like Ubuntu or Debian come with these pre-installed)
+
 ## Installation
 
 Create a settings.ini file on your system. Example:

gitea_auto_update/lib/download.py

@@ -31,7 +31,11 @@ def download(url, file_name):
 
 def sha_check():
     """Check sha for gitea file"""
-    return os.system("sha256sum -c gitea.xz.sha256 > /dev/null") == 0
+    sha_path = 'gitea.xz.sha256'
+    if os.path.exists(sha_path):
+        return os.system("sha256sum -c "+sha_path+" > /dev/null") == 0
+    # return true because we don't have a sha file to check
+    return True
 
 
 class Download:

setup.py

@@ -8,12 +8,12 @@ License: GNU General Public License
 '''
 import setuptools
 
-with open("README.md", "r") as fh:
+with open("README.md", "r", encoding='utf8') as fh:
     LONG_DESCRIPTION = fh.read()
 
 setuptools.setup(
     name='gitea_auto_update',
-    version='2.0.10',
+    version='2.0.11',
     description='A script which can update gitea to a new version.',
     long_description=LONG_DESCRIPTION,
     long_description_content_type="text/markdown",