Use markdown in CHANGELOG

CHANGELOG.md

@@ -7,9 +7,9 @@ The releases of major and minor versions contain an overview of changes since th
 Version 1.2.x
 -------------
 
-### Version 1.2.0
-- C++ api changes: Building model takes BuilderOptions instead of extended list of Booleans, does not depend on settings anymore.
-- storm-cli-utilities now contains cli related stuff, instead of storm-lib
+### Version 1.2.0 (2017/12)
+- C++ api changes: Building model takes `BuilderOptions` instead of extended list of Booleans, does not depend on settings anymore.
+- `storm-cli-utilities` now contains cli related stuff, instead of `storm-lib`
 - Symbolic (MT/BDD) bisimulation
 - Fixed issue related to variable names that can not be used in Exprtk.
 - DRN parser improved
@@ -22,9 +22,9 @@ Version 1.2.x
 - Performance improvements for conditional properties on MDPs
 - Automatically convert MA without probabilistic states into CTMC
 - Fixed implemention of Fox and Glynn' algorithm
-- storm-pars: support for welldefinedness constraints in mdps.
-- storm-dft: split DFT settings into IO settings and fault tree settings
-- storm-dft: removed obsolete explicit model builder for DFTs
+- `storm-pars`: support for welldefinedness constraints in mdps.
+- `storm-dft`: split DFT settings into IO settings and fault tree settings
+- `storm-dft`: removed obsolete explicit model builder for DFTs
 - Features for developers:
 	* Solvers can now expose requirements
 	* unbounded reachability and reachability rewards now correctly respect solver requirements
@@ -36,10 +36,9 @@ Version 1.1.x
 -------------
 
 ### Version 1.1.0 (2017/8)
-
 - Support for long-run average rewards on MDPs and Markov automata using a value-iteration based approach.
 - Storm can now check MDPs and Markov Automata (i.e. MinMax equation systems) via Linear Programming.
-- Parametric model checking is now handled in a separated library/executable called storm-pars.
+- Parametric model checking is now handled in a separated library/executable called `storm-pars`.
 - Wellformedness constraints on PMCs:
     * include constraints from rewards
     * are in smtlib2
@@ -50,15 +49,14 @@ Version 1.1.x
 - Support for parsing/building models given in the explicit input format of IMCA.
 - Storm now overwrites files if asked to write files to a specific location.
 - Changes in build process to accommodate for changes in carl. Also, more robust against issues with carl.
-- USE_POPCNT removed in favor of FORCE_POPCNT. The popcnt instruction is used if available due to march=native, unless portable is set.
-    Then, using FORCE_POPCNT enables the use of the SSE 4.2 instruction
+- `USE_POPCNT` removed in favor of `FORCE_POPCNT`. The popcnt instruction is used if available due to `march=native`, unless portable is set.
+  Then, using `FORCE_POPCNT` enables the use of the SSE 4.2 instruction
 
 
 Version 1.0.x
 -------------
 
 ### Version 1.0.1 (2017/4)
-
 - Multi-objective model checking support now fully included
 - Several improvements in parameter lifting
 - Several improvements in JANI parsing