[enh] make version of searx readable

searx/webapp.py

@@ -44,6 +44,7 @@ from searx.engines import (
 from searx.utils import (
     UnicodeWriter, highlight_content, html_to_text, get_themes
 )
+from searx.version import VERSION_STRING
 from searx.https_rewrite import https_rules
 from searx.languages import language_codes
 from searx.search import Search
@@ -171,6 +172,8 @@ def render(template_name, override_theme=None, **kwargs):
     if 'autocomplete' not in kwargs:
         kwargs['autocomplete'] = autocomplete
 
+    kwargs['searx_version'] = VERSION_STRING
+
     kwargs['method'] = request.cookies.get('method', 'POST')
 
     # override url_for function in templates