Update README.md

+ Add more examples 
+ Update options

README.md

@@ -9,7 +9,9 @@
  ```
 
  Example usage:
-
+ 
+* `./packgen.js -fR` generate a pack with the latest release version and descriptive output (recommended)
+* `./packgen.js -f -v 1.15` using version "1.15" for pack generation
 * `./packgen.js --lang en_nz` generate a pack using `en_nz` insead of the default `en_gb`
 * `./packgen.js -f` generate a pack with a descriptive output zip E.g. `en_gb-v1.19.1-en_MSE` insead of just `Maoist-Standard-English.zip`
 * `./packgen.js -m https://example.com/mc/game/version_manifest_v2.json -r https://example.com/` with a custom server `example.com`
@@ -168,12 +170,15 @@ zlm_arab
 ## General Options:
 ```
 Options:
-  -h, --help             Show help                                      [boolean]
-  -V, --version          Show version number                            [boolean]
-  -f, --descriptivefile  Descriptive output E.g. "en_gb-v1.19.1-en_MSE" [boolean]
-  -l, --lang             <language> base language for pack generation    [string]
-  -m, --manifest         <url> custom manifest endpoint                  [string]
-  -r, --resources        <url> custom resources endpoint                 [string]
+  -h, --help             Show help                                     [boolean]
+  -V, --version          Show version number                           [boolean]
+  -f, --descriptivefile  descriptive output E.g. "en_gb-v1.19.1-en_MSE"[boolean]
+  -l, --lang             <language> base language for pack generation   [string]
+  -v, --verid            <version-id> base version for pack generation  [string]
+  -R, --releaseOnly      use only the *latest* release version         [boolean]
+  -m, --manifest         <url> custom manifest endpoint                 [string]
+  -r, --resources        <url> custom resources endpoint                [string]
+  -d, --debug            verbose debug output                          [boolean]
 ```
 
 # Why Us