diff --git a/BUGS.md b/BUGS.md
index 0ad4c29..bf2d5fd 100644
--- a/BUGS.md
+++ b/BUGS.md
@@ -1,6 +1,7 @@
 
 # BUGS
 
+- permitir configuracao para escolher entre static files locais ou remotos
 - sqlalchemy.pool.impl.NullPool: Exception during reset or similar
 sqlite3.ProgrammingError: SQLite objects created in a thread can only be used in that same thread.
 
diff --git a/README.md b/README.md
index c124968..358c9d1 100644
--- a/README.md
+++ b/README.md
@@ -85,8 +85,9 @@ At this point aprendizations is installed in
 ~/.local/bin                          # FreeBSD/Linux
 ```
 
-and can be run with the command `aprendizations` (make sure this directory is
-in your `$PATH`).
+Make sure this directory is in your `$PATH`.
+
+The server can be run with the command `aprendizations` from the terminal.
 
 ## Configuration
 
@@ -121,7 +122,7 @@ have a registered publicly accessible domain name.
 
 #### Selfsigned
 
-Generate a selfsigned certificate and place it in `aprendizations/certs`.
+Generate a selfsigned certificate and place it in `~/.local/share/certs`.
 
 ```sh
 openssl req -x509 -newkey rsa:4096 -keyout privkey.pem -out cert.pem -days 365 -nodes
@@ -141,7 +142,7 @@ sudo certbot certonly --standalone -d www.example.com
 sudo service pf start                           # enable pf firewall
 ```
 
-Certificates are saved under `/usr/local/etc/letsencrypt/live/www.example.com/`. Copy them to `aprendizations/certs` and change permissions to be readable:
+Certificates are saved under `/usr/local/etc/letsencrypt/live/www.example.com/`. Copy them to `~/.local/share/certs` and change permissions to be readable:
 
 ```sh
 sudo cp /usr/local/etc/letsencrypt/live/www.example.com/cert.pem .
@@ -157,7 +158,7 @@ sudo certbot renew
 sudo service pf start  # start firewall
 ```
 
-and then copy the `cert.pem` and `privkey.pem` files to `aprendizations/certs` directory. Change permissions and ownership as appropriate.
+and then copy the `cert.pem` and `privkey.pem` files to `~/.local/share/certs` directory. Change permissions and ownership as appropriate.
 
 
 ### Testing
@@ -169,7 +170,8 @@ cd demo
 aprendizations demo.yaml
 ```
 
-and open a browser at [https://127.0.0.1:8443](). If it everything looks good, 
+and open a browser at [https://127.0.0.1:8443](https://127.0.0.1:8443). 
+If it everything looks good, 
 check at the correct address `https://www.example.com` (requires port forward 
 in the firewall). The option `--debug` provides more verbose logging and might 
 be useful during testing. The option `--check` generates all the questions once
diff --git a/aprendizations/learnapp.py b/aprendizations/learnapp.py
index 1d3fb98..02df6d5 100644
--- a/aprendizations/learnapp.py
+++ b/aprendizations/learnapp.py
@@ -459,3 +459,5 @@ class LearnApp(object):
                     for uid, name in students if uid != '0']
 
         return sorted(rankings, key=lambda x: x[2], reverse=True)
+
+    # ------------------------------------------------------------------------
diff --git a/aprendizations/questions.py b/aprendizations/questions.py
index fc83b70..3bbc7df 100644
--- a/aprendizations/questions.py
+++ b/aprendizations/questions.py
@@ -28,9 +28,9 @@ class QuestionException(Exception):
 # ===========================================================================
 class Question(dict):
     '''
-    Classes derived from this base class are meant to instantiate a question
-    to a student.
-    Instances can shuffle options, or automatically generate questions.
+    Classes derived from this base class are meant to instantiate questions
+    for each student.
+    Instances can shuffle options or automatically generate questions.
     '''
     def __init__(self, q: QDict) -> None:
         super().__init__(q)
@@ -125,7 +125,7 @@ class QuestionRadio(Question):
             self['correct'] = [float(correct[i]) for i in perm]
 
     # ------------------------------------------------------------------------
-    # can return negative values for wrong answers
+    # can assign negative grades for wrong answers
     def correct(self) -> None:
         super().correct()
 
diff --git a/config/logger.yaml b/config/logger.yaml
index 4a5def2..bf54e54 100644
--- a/config/logger.yaml
+++ b/config/logger.yaml
@@ -5,7 +5,7 @@ formatters:
     void:
         format: ''
     standard:
-        format: '%(asctime)s | %(thread)-15d | %(levelname)-9s | %(name)-24s | %(message)s'
+        format: '%(asctime)s | %(thread)-15d | %(levelname)-9s | %(message)s'
         datefmt: '%Y-%m-%d %H:%M:%S'
 
 handlers:
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