prepare for release

- Update README.rst (supported threads, changelog)
- bump version number (in threadlib.scad)

docs/README.rst

@@ -169,6 +169,7 @@ Currently, threadlib knows these threads:
   <https://www.bevtech.org/assets/Committees/Packaging-Technology/20/3784253-20.pdf>`__
   and `PCO-1810 <https://www.isbt.com/assets/Threadspecs/pco1810.pdf>`__
   (PET-bottle thread)
+- Royal Microscopical Society's Thread (RMS)
 
 
 Extensibility
@@ -207,6 +208,7 @@ button is at the top of this website.)
 Change Log
 ===========================
 
+- 0.5: Royal Microscopical Society's thread (RMS)
 - 0.4: `PCO-1810 <https://www.isbt.com/assets/Threadspecs/pco1810.pdf>`__.
   tap module. Fixes bug with $fn in straight_thread(). Lists metric
   threads under short designator and full designator.

threadlib.scad

@@ -5,11 +5,11 @@ threadlib
 Create threads easily.
 
 :Author: Adrian Schlatter and contributors
-:Date: 2019-11-11
+:Date: 2023-04-02
 :License: 3-Clause BSD. See LICENSE.
 */
 
-function __THREADLIB_VERSION() = 0.4;
+function __THREADLIB_VERSION() = 0.5;
 
 use <thread_profile.scad>
 include <THREAD_TABLE.scad>