Docs update (#4182)

doc/Developing/Creating-Documentation.md

@@ -0,0 +1,19 @@
+# Creating Documentation
+
+One of the goals of the LibreNMS project is to enable users to get all of the help they need from our documentation.
+
+When you are adding a new feature or extension, we need to have full documentation to go along with it. It's quite 
+simple to do this:
+
+  - Find the relevant directory to store your new document in, General, Support and Extensions are the most likely choices.
+  - Think of a descriptive name that's not too long, it should match what they may be looking for or describes the feature.
+  - In the body of the document, be descriptive but keep things simple. Some tips:
+    - If the document could cover different distros like CentOS and Ubuntu please try and include the information for them all.
+      If that's not possible then at least put a placeholder in asking for contributions.
+    - Ensure you use the correct formating for `commands` and `code blocks` by wrapping one liners in backticks or blocks in ```.
+  - If you rename a file, please add a redirect in for the old file by using `<meta http-equiv="refresh" content="0; url=/NewLocation/" />` within the old file name.
+
+Please ensure you add the document to the relevant section within `pages` of `mkdocs.yml` so that it's in the correct menu and is built.
+Forgetting this step will result in your document never seeing the light of day :)
+
+

doc/Installation/Installation-CentOS-7-Apache.md

@@ -41,7 +41,7 @@ yum install epel-release
 rpm -Uvh https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm
 rpm -Uvh https://mirror.webtatic.com/yum/el7/webtatic-release.rpm
 
-yum install php70w php70w-cli php70w-gd php70w-mysql php70w-snmp php70w-pear php70w-curl php70w-common php70w-fpm nginx net-snmp mariadb ImageMagick jwhois nmap mtr rrdtool MySQL-python net-snmp-utils cronie php70w-mcrypt fping git
+yum install php70w php70w-cli php70w-gd php70w-mysql php70w-snmp php70w-pear php70w-curl php70w-common httpd net-snmp mariadb ImageMagick jwhois nmap mtr rrdtool MySQL-python net-snmp-utils cronie php70w-mcrypt fping git
 
 pear install Net_IPv4-1.3.4
 pear install Net_IPv6-1.2.2b2

mkdocs.yml

@@ -71,6 +71,7 @@ pages:
 - Developing:
     - Developing/Code-Guidelines.md
     - Developing/Code-Structure.md
+    - Developing/Creating-Documentation.md
     - Developing/Dynamic-Config.md
     - Developing/Sensor-State-Support.md
     - Developing/Style-Guidelines.md