delete old docs (#327)

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* new docs

docs/pages/location/options/_meta.json

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+{
+  "index": "Overview"
+}

docs/pages/location/options/copy.md

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+# Copy
+
+Instead of specifying multiple `to` backends for a given `location` you can also use the `copy` option. Instead of recalculating the backup multiple times, you can copy the freshly copied snapshot from one backend to the other, avoiding recomputation.
+
+###### Example
+
+```yaml | .autorestic.yml
+locations:
+  my-location:
+    from: /data
+    to:
+      - a #Fast
+      - b #Fast
+      - c #Slow
+```
+
+Becomes
+
+```yaml | .autorestic.yml
+locations:
+  my-location:
+    from: /data
+    to:
+      - a
+      - b
+    copy:
+      a:
+        - c
+```
+
+Instead of backing up to each backend separately, you can choose that the snapshot created to `a` will be copied over to `c`, avoiding heavy computation on `c`.

docs/pages/location/options/exclude.md

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+# Excluding files
+
+If you want to exclude certain files or folders it done easily by specifying the right flags in the location you desire to filter.
+
+The flags are taken straight from the [restic cli exclude rules](https://restic.readthedocs.io/en/latest/040_backup.html#excluding-files) so you can use any flag used there.
+
+```yaml
+locations:
+  my-location:
+    from: /data
+    to: my-backend
+    options:
+      backup:
+        exclude:
+          - '*.nope'
+          - '*.abc'
+        exclude-file: .gitignore
+```

docs/pages/location/options/forget.md

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+# Forget/Prune Policies
+
+Autorestic supports declaring snapshot policies for location to avoid keeping old snapshot around if you don't need them.
+
+This is based on [Restic's snapshots policies](https://restic.readthedocs.io/en/latest/060_forget.html#removing-snapshots-according-to-a-policy), and can be enabled for each location as shown below:
+
+> **Note** This is a full example, of course you also can specify only one of them
+
+```yaml | .autorestic.yml
+version: 2
+
+locations:
+  etc:
+    from: /etc
+    to: local
+    options:
+      forget:
+        keep-last: 5 # always keep at least 5 snapshots
+        keep-hourly: 3 # keep 3 last hourly snapshots
+        keep-daily: 4 # keep 4 last daily snapshots
+        keep-weekly: 1 # keep 1 last weekly snapshots
+        keep-monthly: 12 # keep 12 last monthly snapshots
+        keep-yearly: 7 # keep 7 last yearly snapshots
+        keep-within: '14d' # keep snapshots from the last 14 days
+```
+
+## Globally
+
+You can specify global forget policies that would be applied to all locations:
+
+```yaml | .autorestic.yml
+version: 2
+
+global:
+  forget:
+    keep-daily: 30
+    keep-weekly: 52
+```
+
+## Automatically forget after backup
+
+You can also configure `autorestic` to automatically run the forget command for you after every backup. You can do that by specifying the `forget` option.
+
+```yaml | .autorestic.yml
+version: 2
+
+locations:
+  etc:
+    from: /etc
+    to: local
+    forget: prune # Or only "yes" if you don't want to prune
+    options:
+      forget:
+        keep-last: 5
+```

docs/pages/location/options/index.md

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+# Options
+
+For the `backup` and `forget` commands you can pass any native flags to `restic`. In addition you can specify flags for every command with `all`.
+
+If flags don't start with `-` they will get prefixed with `--`.
+
+Flags without arguments can be set to `true`. They will be handled accordingly.
+
+> ℹ️ It is also possible to set options for an [entire backend](/backend/options) or globally (see below).
+
+```yaml
+locations:
+  foo:
+    # ...
+    options:
+      all:
+        some-flag: 123
+        # Equivalent to
+        --some-flag: 123
+      backup:
+        boolean-flag: true
+        tag:
+          - foo
+          - bar
+```
+
+## Example
+
+In this example, whenever `autorestic` runs `restic backup` it will append a `--tag foo --tag bar` to the native command.
+
+```yaml
+locations:
+  foo:
+    path: ...
+    to: ...
+    options:
+      backup:
+        tag:
+          - foo
+          - bar
+```
+
+## Priority
+
+Options can be set globally, on the backends or on the locations.
+
+The priority is as follows: `location > backend > global`.
+
+## Global Options
+
+It is possible to specify global flags that will be run every time restic is invoked. To do so specify them under `global` in your config file.
+
+```yaml
+global:
+  all:
+    cache-dir: ~/restic
+  backup:
+    tag:
+      - foo
+
+backends:
+  # ...
+locations:
+  # ...
+```