Updated README.md to explain versioning

README.md

@@ -1,7 +1,8 @@
-# autoBIGS.Engine
+# autoBIGS.engine
 
 A python library implementing common BIGSdb MLST schemes and databases accesses for the purpose of typing sequences automatically. Implementation follows the RESTful API outlined by the official [BIGSdb documentation](https://bigsdb.readthedocs.io/en/latest/rest.html) up to `V1.50.0`.
 
+
 ## Features
 
 Briefly, this library can:
@@ -23,3 +24,15 @@ Then, it's as easy as running `pip install autobigs-engine` in any terminal that
 ### CLI usage
 
 This is a independent python library and thus does not have any form of direct user interface. One way of using it could be to create your own Python script that makes calls to this libraries functions. Alternatively, you may use `autobigs-cli`, a `Python` package that implements a CLI for calling this library.
+
+## Versioning
+
+the autoBIGS project follows [semantic versioning](https://semver.org/) where the three numbers may be interpreted as MAJOR.MINOR.PATCH.
+
+Note regarding major version 0 ([spec item 4](https://semver.org/#spec-item-4)), the following adaptation of semantic versioning definition is as follows:
+
+1. Given x.Y.z, Y is only incremented when a backwards incompatible change is made.
+
+2. Given x.y.Z, Z is only incremented when a backwards compatible change is made.
+
+Versions of autoBIGS items with a major version number of 0 will introduce numerous changes and patches. As such, changes between such versions should be considered highly variable.