readme correction

README.md

@@ -1,11 +1,11 @@
 # Amoeba
-##Summary
+## Summary
 Minimization algorithms using amoeba, random scanning and annealing.
 The documentation can be found here: https://www.ge.infn.it/~chugon/Amoeba/html/
 
 The examples on how to use each of the methods are in programs/test_*.cxx
 
-##Compilation:
+## Compilation:
 
 Amoeba uses cmake. It has only the standard libraries (c++11) as dependency:
 
@@ -14,7 +14,7 @@ Amoeba uses cmake. It has only the standard libraries (c++11) as dependency:
     cmake ..
     make
 
-##Using it as external library
+## Using it as external library
 No installation script is done yet. To compile with it, just configure the environement variable AMOEBA_ROOT, then add
 
     -L${AMOEBA_ROOT}/build -lamoeba -I${AMOEBA_ROOT}/include/amoeba