adding beta mode note to readme for simtr and prancstr

README.rst

@@ -88,8 +88,8 @@ TRTools includes the following tools.
 * `statSTR <https://trtools.readthedocs.io/en/latest/source/statSTR.html>`_: a tool for computing various statistics on VCF files
 * `compareSTR <https://trtools.readthedocs.io/en/latest/source/compareSTR.html>`_: a tool for comparing TR callsets
 * `associaTR <https://trtools.readthedocs.io/en/latest/source/associaTR.html>`_: a tool for testing TR length-phenotype associations (e.g., running a TR GWAS)
-* `prancSTR <https://trtools.readthedocs.io/en/latest/source/prancSTR.html>`_: a tool for identifying somatic mosacisim at TRs. Currently only compatible with HipSTR VCF files. 
-* `simTR <https://trtools.readthedocs.io/en/latest/source/simTR.html>`_: a tool for simulating next-generation sequencing reads from TR regions.
+* `prancSTR <https://trtools.readthedocs.io/en/latest/source/prancSTR.html>`_: a tool for identifying somatic mosacisim at TRs. Currently only compatible with HipSTR VCF files. (*beta mode*)
+* `simTR <https://trtools.readthedocs.io/en/latest/source/simTR.html>`_: a tool for simulating next-generation sequencing reads from TR regions. (*beta mode*)
 
 Type :code:`<command> --help` to see a full set of options.