Fix broken links (#4700)

##### Summary
<!--- Describe the change below, including rationale and design decisions -->
Fixes #4672 

The name of the branch is misleading, don't worry about it. Details on the fixes below.

##### Additional Information
> Checking links in ./doc/Netdata-Security-and-Disclosure-Information.md
>  1. [L13] 404 https://github.com/netdata/netdata/.github/ISSUE_TEMPLATE.md  

Fixed

> Checking links in ./REDISTRIBUTED.md
>  1. [L190] 404 https://github.com/netdata/netdata/blob/master/python.d/python_modules/urllib3/packages/six.py  

Fixed

> Checking links in ./web/api/queries/ses/README.md
>  1. [L53]  https://en.wikipedia.org/wiki/Moving_average#exponential-moving-average](https://en.wikipedia.org/wiki/Moving_average bad URI(is not URI?): https://en.wikipedia.org/wiki/Moving_average#exponential-moving-average](https://en.wikipedia.org/wiki/Moving_average 

False, link works

> Checking links in ./packaging/README.md
>  1. [L52] 404 https://github.com/firehol/infrastructure/raw/master/doc/release.txt  

Fixed 

> Checking links in ./installer/README.md
>  1. [L089] 404 https://github.com/netdata/netdata/blob/master/MAINTAINERS.md  

Fixed

>  2. [L241] 404 http://pkg.freebsd.org/FreeBSD:11:amd64/latest/All/netdata-1.10.0.txz  

Fixed 

> Checking links in ./daemon/README.md
>  1. [L080] 404 https://github.com/netdata/netdata/pull/403_ 

False. The URL is without the underscore
 
>  2. [L116] 404 https://github.com/netdata/netdata/blob/master/LICENSE.md  

Fixed 

> Checking links in ./collectors/python.d.plugin/web_log/README.md
>  1. [L026] 404 https://github.com/netdata/netdata/tree/master/conf.d/python.d 

Fixed 

> 2. [L030] 404 https://github.com/netdata/netdata/blob/master/conf.d/python.d/web_log.conf  

Fixed

>  3. [L187] 404 https://github.com/netdata/netdata/blob/master/conf.d/health.d/web_log.conf 

Fixed
 
>  4. [L200] 404 https://github.com/netdata/netdata/tree/master/conf.d/health.d  

Fixed

> Checking links in ./collectors/python.d.plugin/apache/README.md
>  1. [L52] 404 http://www.apache.org/server-status?auto  

Can't fix. Can't find a URL that will return server-status

> Checking links in ./collectors/freeipmi.plugin/README.md
>  1. [L090] 404 https://github.com/ktsaou/netdata/tree/master/plugins/freeipmi.plugin

Fixed (also in the c code)

> Checking links in ./CONTRIBUTORS.md
>   1. [L013]  http://producingoss.com/en/copyright-assignment.html Failed to open TCP connection to producingoss.com:80 (Connection refused - connect(2) for "producingoss.com" port 80) 

Fixed

3 files changed, 6 insertions, 6 deletions

diff --git a/collectors/freeipmi.plugin/README.md b/collectors/freeipmi.plugin/README.md
index f7c5cc1483..6d4ad1865f 100644
--- a/collectors/freeipmi.plugin/README.md
+++ b/collectors/freeipmi.plugin/README.md
@@ -87,7 +87,7 @@ The plugin supports a few options. To see them, run:
  options ipmi_si kipmid_max_busy_us=10
 
  For more information:
- https://github.com/ktsaou/netdata/tree/master/plugins/freeipmi.plugin
+ https://github.com/netdata/netdata/tree/master/collectors/freeipmi.plugin
 
 ```
 
diff --git a/collectors/freeipmi.plugin/freeipmi_plugin.c b/collectors/freeipmi.plugin/freeipmi_plugin.c
index a1cff3af06..7fc012d38f 100644
--- a/collectors/freeipmi.plugin/freeipmi_plugin.c
+++ b/collectors/freeipmi.plugin/freeipmi_plugin.c
@@ -1624,7 +1624,7 @@ int main (int argc, char **argv) {
                     " options ipmi_si kipmid_max_busy_us=10\n"
                     "\n"
                     " For more information:\n"
-                    " https://github.com/ktsaou/netdata/tree/master/plugins/freeipmi.plugin\n"
+                    " https://github.com/netdata/netdata/tree/master/collectors/freeipmi.plugin\n"
                     "\n"
                     , VERSION
                     , netdata_update_every
diff --git a/collectors/python.d.plugin/web_log/README.md b/collectors/python.d.plugin/web_log/README.md
index d3c0373512..60ca41640f 100644
--- a/collectors/python.d.plugin/web_log/README.md
+++ b/collectors/python.d.plugin/web_log/README.md
@@ -23,11 +23,11 @@ If netdata is installed on a system running a web server, it will detect it and
 ![image](https://cloud.githubusercontent.com/assets/2662304/22900686/e283f636-f237-11e6-93d2-cbdf63de150c.png)
 *[**netdata**](https://my-netdata.io/) charts based on metrics collected by querying the `nginx` API (i.e. `/stab_status`).*
 
-> [**netdata**](https://my-netdata.io/) supports `apache`, `nginx`, `lighttpd` and `tomcat`. To obtain real-time information from a web server API, the web server needs to expose it. For directions on configuring your web server, check [`/etc/netdata/python.d/`](https://github.com/netdata/netdata/tree/master/conf.d/python.d). There is a file there for each web server.
+> [**netdata**](https://my-netdata.io/) supports `apache`, `nginx`, `lighttpd` and `tomcat`. To obtain real-time information from a web server API, the web server needs to expose it. For directions on configuring your web server, check the config files for each web server. There is a directory with a config file for each web server under [`/etc/netdata/python.d/`](../). 
 
 ## Configuration
 
-[**netdata**](https://my-netdata.io/) has a powerful `web_log` plugin, capable of incrementally parsing any number of web server log files. This plugin is automatically started with [**netdata**](https://my-netdata.io/) and comes, pre-configured, for finding web server log files on popular distributions. Its configuration is at [`/etc/netdata/python.d/web_log.conf`](https://github.com/netdata/netdata/blob/master/conf.d/python.d/web_log.conf), like this:
+[**netdata**](https://my-netdata.io/) has a powerful `web_log` plugin, capable of incrementally parsing any number of web server log files. This plugin is automatically started with [**netdata**](https://my-netdata.io/) and comes, pre-configured, for finding web server log files on popular distributions. Its configuration is at [`/etc/netdata/python.d/web_log.conf`](web_log.conf), like this:
 
 
 ```yaml
@@ -184,7 +184,7 @@ The last charts are about the unique IPs accessing your web server.
 
 ## Alarms
 
-The magic of [**netdata**](https://my-netdata.io/) is that all metrics are collected per second, and all metrics can be used or correlated to provide real-time alarms. Out of the box, [**netdata**](https://my-netdata.io/) automatically attaches the [following alarms](https://github.com/netdata/netdata/blob/master/conf.d/health.d/web_log.conf) to all `web_log` charts (i.e. to all log files configured, individually):
+The magic of [**netdata**](https://my-netdata.io/) is that all metrics are collected per second, and all metrics can be used or correlated to provide real-time alarms. Out of the box, [**netdata**](https://my-netdata.io/) automatically attaches the [following alarms](../../../health/health.d/web_log.conf) to all `web_log` charts (i.e. to all log files configured, individually):
 
 alarm|description|minimum<br/>requests|warning|critical
 :-------|-------|:------:|:-----:|:------:
@@ -197,5 +197,5 @@ alarm|description|minimum<br/>requests|warning|critical
 
 The column `minimum requests` state the minimum number of requests required for the alarm to be evaluated. We found that when the site is receiving requests above this rate, these alarms are pretty accurate (i.e. no false-positives).
 
-[**netdata**](https://my-netdata.io/) alarms are [user configurable](https://github.com/netdata/netdata/tree/master/conf.d/health.d). So, even [`web_log` alarms can be adapted to your needs](https://github.com/netdata/netdata/blob/master/conf.d/health.d/web_log.conf).
+[**netdata**](https://my-netdata.io/) alarms are [user configurable](../../../health/health.d). So, even [`web_log` alarms can be adapted to your needs](../../../health/health.d/web_log.conf).