Created Notify_boxcar (markdown)

Notify_boxcar.md

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+## Boxcar Notifications
+* **Source**: https://boxcar.io/
+* **Icon Support**: No
+* **Message Format**: Text
+* **Message Limit**: 10000 Characters per Message
+
+### Syntax
+Valid authentication syntaxes are as follows:
+* **boxcar**:://**{hostname}**
+* **boxcar**:://**{hostname}**:**{port}**
+* **boxcar**:://**{user}**:**{hostname}**
+* **boxcar**:://**{user}**@**{password}**:**{hostname}**
+
+Tags support:
+* **boxcar**:://**{hostname}**/**@{tag_id}**
+* **boxcar**:://**{hostname}**/**@{tag_id01}**/**@{tag_id02}**/**@{tag_idNN}**
+Device Tokens:
+* **boxcar**:://**{hostname}**/**{device_id}**
+* **boxcar**:://**{hostname}**/**{device_id01}**/**{device_id02}**/**{device_idNN}**
+
+Alias support:
+* **boxcar**:://**{hostname}**/**{alias}**
+* **boxcar**:://**{hostname}**/**{alias01}**/**{alias02}**/**{aliasNN}**
+
+You can also form any combination of the above and perform updates from one url:
+* **boxcar**:://**{accesstoken}**/**{tag_id}**/**{device_id}**/**@{alias_id}**
+
+Secure connections can be made by using **boxcars://**.
+
+### Parameter Breakdown
+| Variable    | Required | Description
+| ----------- | -------- | -----------
+| hostname    | Yes      | The server Boxcar is listening on.
+| port        | No       | The port Boxcar is listening on. By default the port is **80** for **boxcar://** and **443** for all **boxcars://** references.
+| user        | No       | If your boxcar server is protected by a user/pass combo, you will be required to provide it.
+| password    | No       | If your boxcar server is protected by a user/pass combo, you will be required to provide it.
+| device_id   | No       | Associated devices with your Boxcar setup. All _device_ids_ are 64 characters in length.
+| tag_id      | No       | Tags must be prefixed with a @ symbol or they will be interpreted as a _device_id_ and/or _alias_.
+| alias       | No       | Associated aliases with your Boxcar setup. All _alias_ids_ are 1 to 63 characters in length.
+
+#### Example
+Send a _secure_ Boxcar notification to an alias and a _tag_:
+```bash
+# Assume:
+#  - our {hostname} is localhost
+#  - our host is secured (we use boxcars://)
+#  - our {alias} is myphone
+#  - our {tag} is @friends
+
+python notify.py boxcars://localhost/myphone/@friends
+```