Updated CLI_Usage (markdown)

CLI_Usage.md

@@ -1,6 +1,7 @@
-## Apprise CLI
+## :mega: Apprise CLI
 This small tool wraps the apprise python library to allow individuals such as Developers, DevOps, and Administrators to send notifications from the command line.
 
+### Getting Started
 Apprise in it's most basic form requires that you provide it a message and an Apprise URL which contains enough information to send the notification with.
 ```bash
 # Set a notification to a hotmail (email) account:
@@ -23,3 +24,90 @@ python apprise --body="Notify more than one service" \
    kodi://example.com
 ```
 
+#### File Based Configuration
+Ideally it's never safe to store your personal details on the command line; others might see it! So the best thing to do is stick your configuration into a simple [[configuration file|config]]. With respect to the above example, maybe your file will look like this:
+```apache
+# use hashtag/pound characters to add comments into your
+# configuration file.  Define all of your URLs one after
+# another:
+mailto://user:password@yahoo.com
+slack://token_a/token_b/token_c
+kodi://example.com
+```
+
+Then you can notify all of your services like so: 
+```bash
+# Set a notification to a yahoo email account, Slack, and a Kodi Server:
+python apprise --body="Notify more than one service" \
+   --config=/path/to/your/apprise/config.txt
+```
+
+If you stick your configuration in the right locations, you don't even need to reference the **--config** as it will be included automatically; the default filename paths are as follows:
+* **Linux/Mac users**:
+  * `~/.apprise`
+  * `~/.config/apprise`
+* **Microsoft Windows users**:
+  * `%APPDATA%/Apprise/apprise`
+  * `%LOCALAPPDATA%/Apprise/apprise`
+
+Now your reference to the Apprise CLI got even easier:
+```bash
+# Set a notification to a yahoo email account, Slack, and a Kodi Server:
+python apprise --body="Notify all of my services"
+```
+
+### :label: Leverage Tagging
+Consider the case where you've defined all of your Apprise URLs in one file, but you don't want to notify all of them every time.
+* Maybe you have special notifications that only fire when a download completed.
+* Maybe you have home monitoring that requires you to notify several different locations
+* Perhaps you work as an Administrative, Developer, and/or Devops role and you want to just notify certain people at certain times (such as when a software build completes, or a unit test fails, etc).
+
+Apprise makes this easy by simply allowing you to tag your URLs.  There is no limit to the number of tags associate with a URL.  Let's make apprise a configuration file for a Work/Home account and fill it with tags:
+```apache
+# Tags in a Text configuration sit in front of the URL
+#  - They are comma and/or space separated (if more than one
+#  - To mark that you are no longer specifying tags and want to identify
+#    the URL, you just place an equal (=) sign and write the URL:
+#
+# Syntax: <tags>=<url>
+me,family=mailto://user:password@yahoo.com
+family=mailto://user:password@yahoo.com/myspouse@example.com/mychild@example.com
+team=slack://token_a/token_b/token_c/#devops
+devops=slack://token_a/token_b/token_c/#build_status
+team,email=mailto://user:password@yahoo.com/john@mycompany.com/jack@mycompany.com/jason@mycompany.com
+downloads=kodi://example.com
+```
+
+Now there is a lot to ingest from the above, but here is a great (relatively simple) example of how you can use this:
+```bash
+# Send an alert to yourself and your spouse; this would trigger
+# the first 2 entries because they have the tag `family`
+# It would 'NOT' send to any other entry defined
+python apprise --body="Hi guys, i'm going to be late getting home tonight" \
+   --tag=family
+
+# This would just send yourself an email:
+python apprise --body="Don't forget to buy eggs!" \
+   --tag=me
+```
+
+If you're building software, you can set up your continuous integration to notify your `team` AND `devops` by simply identifying 2 tags:
+```bash
+# This would just send yourself an email:
+```bash
+# notify the services that have either a `devops` or `team` tag
+# If you check our our configuration; this matches 3 separate URLs
+python apprise --title="Apprise Build" \
+   --body="Build was a success!" \
+   --tag=devops --tag=team
+```
+When you specify more than one **--tag** the contents are **OR**'ed together.
+
+If you identify more than one element on the same **--tag** using a space and/or comma, then these get treated as an **AND**. Here is an example:
+```bash
+# notify only the services that have both a team and email tag
+# In this example, there is only one match.
+python apprise --title="Meeting this Friday" \
+   --body="Guys, there is a meeting this Friday with our director." \
+   --tag=team,email
+```