Merge pull request #3715 from mrmundt/august-typos

August Typos Release

Author: jsiirola

pyomo/contrib/appsi/README.md

@@ -2,12 +2,12 @@
 
 APPSI is a collection of solver interfaces which can resolve Pyomo models quickly.
 
-Design Decisisons
------------------
+Design Decisions
+----------------
 * Fixing variables does not change the structure of a constraint (linear, quadratic, etc.)
   * Making this decision means we do not need to update constraints when variables in those constraints become fixed.
   * In the NL writer, we can fix variables in the bounds section (i.e., "4 value")
     * Ipopt handles this just fine
     * However, if all of the variables in a constraint are fixed, this can cause ipopt problems. Therefore, we do have
       to take care to exclude constraints with all variables fixed. Fortunately, this is pretty easy and efficient.
-      
+