Updated docs

Author: atelomycterus

Dockerfile

@@ -13,5 +13,3 @@ RUN chmod -R 777 /vanillapp
 RUN git clone https://github.com/topcoder-platform/forums-plugins.git /tmp/forums-plugins
 RUN cp /tmp/forums-plugins/config/vanilla.config-defaults.php /vanillapp/conf/config-defaults.php
 RUN cp -r /tmp/forums-plugins/. /vanillapp/plugins
-
-

README.md

@@ -5,8 +5,9 @@
 - Docker (docker deployment)
 
 ## Docker Deployment
-- Set `MYSQL_DATABASE` and `MYSQL_ROOT_PASSWORD` in api.env. 
-These variables are mandatory. `MYSQL_ROOT_PASSWORD` specifies the password that will be set for the MySQL root superuser account.
+- `MYSQL_DATABASE` and `MYSQL_ROOT_PASSWORD` might be changed. You need to use these values during Vanilla Forums
+installation.These variables are mandatory. 
+  `MYSQL_ROOT_PASSWORD` specifies the password that will be set for the MySQL root superuser account.
 - Run `docker-compose build` to build the image
 - Run `docker-compose up` to run Vanilla Forums
 - The Vanilla Forums will be available at `http://<your_docker_machine_ip>` by default

docs/SetupVanillaForums.md

@@ -39,5 +39,9 @@ the Addons list.
 ## Disabling Addons
 1. Disabling an addon will remove whatever features it added, but it never destroys the data associated with it.
 
+# Know Issues
 
+1. 'The specified data type (int unsigned) is not accepted for the MySQL database'.
+The error happens when User enters an invalid email and clicks on 'Continue'.  
+Execute `docker-compose down` and `docker-compose up --build`. Then follow installation steps again.