(doc) Added information about open command

Author: gep13

docs/input/docs/commands/open.md

@@ -0,0 +1,50 @@
+---
+Order: 50
+Title: Open
+---
+
+Depending on the workflow that is being followed, closing on a milestone is
+something that is typically done once a release has been published.  However, it
+might also be necessary to revert closing of a milestone.  There are several
+reasons _why_ this might be necessary, which aren't really important to go into
+here, but this command allow you to open a closed milestone.
+
+:::{.alert .alert-info}
+**NOTE:**
+
+This command will _only_ work against a currently closed milestone.  No action
+will be taken against a milestone that is already open.
+:::
+
+## **Required Parameters**
+
+- `-u, --username`: The username to access GitHub with. This can't be used when
+    using the token parameter.
+- `-p, --password`: The password to access GitHub with. This can't be used when
+    using the token parameter.
+- `--token`: The access token to access GitHub with. This can't be used when
+    using the username and password parameters.
+- `-o, --owner`: The owner of the repository.
+- `-r, --repository`: The name of the repository.
+- `-m, --milestone`: The milestone to use.
+
+## **Optional Parameters**
+
+- `-d, --targetDirectory`: The directory on which GitReleaseManager should be
+    executed. Defaults to current directory.
+- `-l, --logFilePath`: Path to where log file should be created. Defaults to
+    logging to console.
+
+## **Notes**
+
+For Authentication use either username and password, or token parameter
+
+## **Examples**
+
+```bash
+gitreleasemanager.exe open -m 0.1.0 -u bob -p password -o repoOwner -r repo
+
+gitreleasemanager.exe open --milestone 0.1.0 --username bob --password password --owner repoOwner --repository repo
+
+gitreleasemanager.exe open --milestone 0.1.0 --token fsdfsf67657sdf5s7d5f --owner repoOwner --repository repo
+```