Reorganizing the Documentation

docs/other.md

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+# Other configurations
+
+## Exposing Ports
+
+You must expose some ports on the EasyHAProxy container and in the firewall. However, you don't need to expose the other container ports because EasyHAProxy will handle that.
+
+- The ports `80` and `443`.
+- If you enable the HAProxy statistics, you must also expose the port defined in `HAPROXY_STATS_PORT` environment variable (default 1936). Be aware that statististics are enabled by default with no password.
+- Every port defined in `easyhaproxy.[definitions].port` also should be exposed. 
+
+e.g.
+
+```bash
+docker run \
+    /* other parameters */
+    -p 80:80 \
+    -p 443:443 \
+    -p 1936:1936 \
+    -d byjg/easy-haproxy
+```
+
+## Mapping custom .cfg files
+
+You can concatenate valid HAProxy `.cfg` files to the dynamically generated `haproxy.cfg` by mapping the folder `/etc/haproxy/conf.d`.
+
+```bash
+docker run \
+    /* other parameters */
+    -v /your/local/conf.d:/etc/haproxy/conf.d \
+    -d byjg/easy-haproxy
+```
+
+## Setting Custom Errors
+
+If enabled, map the volume : `/etc/haproxy/errors-custom/` to your container and put a file named `ERROR_NUMBER.http`
+where ERROR_NUMBER is the HTTP error code (e.g., `503.http`)
+
+----
+[Open source ByJG](http://opensource.byjg.com)