add install info to docs

docs/install.rst

@@ -1,7 +1,7 @@
 Installation
 ============
 
-MD-SAPT can be installed from the psi4 Conda repo like so:
+MD-SAPT can be installed using Conda with the following:
 
 .. code-block:: bash
 

docs/quick.rst

@@ -27,7 +27,8 @@ The following steps describe how to set up the input YAML file.
 
  4. Specify the pairs of residues from the numbers in step 3
 
- 5. Specify trajectory, optimization, and SAPT settings
+ 5. Specify trajectory, optimization, `SAPT method <https://psicode.org/psi4manual/master/sapt.html#sapt-level>`_, `basis set <https://psicode.org/psi4manual/master/basissets_byelement.html#apdx-basiselement>`_ , and Psi4 settings (see `psi4 documentation <https://psicode.org/psi4manual/master/index.html>`_ for more information)
+
 
 Here is an example of a filled-out YAML file:
 
@@ -39,13 +40,16 @@ Here is an example of a filled-out YAML file:
       settings:
         reference: "rhf"
       save_output: true
+
     simulation:
       ph: 7.0
       charge_guesser: "standard"
       # charge_guesser: 'rdkit'  # to use rdkit. Make sure it is installed first.
+
     system_limits:
       ncpus: 32
       memory: "80GB"
+
     analysis:
       ### This section is for running TrajectorySAPT. To run other types of analyses, see below.
       type: "trajectory"