Merge pull request #5437 from kenjis/fix-docs-add-missing-pages-to-toc

docs: add "License Agreement" and "Change Logs" in the TOC

Author: kenjis

user_guide_src/source/installation/index.rst

@@ -19,6 +19,7 @@ Which is right for you?
     installing_manual
     running
     upgrading
+    ../changelogs/index
     troubleshooting
     repositories
 

user_guide_src/source/intro/index.rst

@@ -44,3 +44,4 @@ CodeIgniter is right for you if:
     requirements
     credits
     psr
+    License Agreement <../license>