Update README with new --help output, prepare for 6.0.0 release

Author: cblakkan

README.md

@@ -54,25 +54,26 @@ looking up the directory tree until it finds one. If Yamale can not find a schem
 
 Usage:
 
-```bash
+```
 usage: yamale [-h] [-s SCHEMA] [-e PATTERN] [-p PARSER] [-n CPU_NUM] [-x] [-v] [-V] [PATH ...]
 
 Validate yaml files.
 
 positional arguments:
-  PATH                  paths to validate, either directories or files. Default is the current directory.
+  PATH                  Paths to validate, either directories or files. Default is the current directory.
 
 options:
   -h, --help            show this help message and exit
   -s SCHEMA, --schema SCHEMA
                         filename of schema. Default is schema.yaml.
   -e PATTERN, --exclude PATTERN
-                        Python regex used to exclude files from validation. Any substring match of a files absolute path will be excluded. Uses deafult Python3 regex. Option can be supplied multiple times.
+                        Python regex used to exclude files from validation. Any substring match of a file's absolute path will be excluded. Uses
+                        default Python3 regex. Option can be supplied multiple times.
   -p PARSER, --parser PARSER
                         YAML library to load files. Choices are "ruamel" or "pyyaml" (default).
   -n CPU_NUM, --cpu-num CPU_NUM
-                        number of child processes to spawn for validation. Default is 4. 'auto' to use CPU count.
-  -x, --no-strict       disable strict mode, unexpected elements in the data will be accepted.
+                        Number of child processes to spawn for validation. Default is 4. 'auto' to use CPU count.
+  -x, --no-strict       Disable strict mode, unexpected elements in the data will be accepted.
   -v, --verbose         show verbose information
   -V, --version         show program's version number and exit
 ```

yamale/VERSION

@@ -1 +1 @@
-5.3.0
+6.0.0