updating documentation

Author: torrmal

README.md

@@ -36,9 +36,6 @@ predicted_sales = mdb.predict(predict='sales', when={'month': 'Sept'}, model_nam
 
 ```
 
-Note: You must have a MongoDB server running, by default, MindsDB will look for it in ```mongodb://127.0.0.1/mindsdb```
-
-Note2: MindsDB uses sqlite as its sql engine, it is recommended SQLite versions >=(3.25.0):
 
 You can learn more in the [MindsDB Quick docs](docs/README.md)
 

docs/Config.md

@@ -1,6 +1,7 @@
+[<Back to Table of Contents](README.md)
 ### CONFIG Settings
 
-You can manipulate the default settings of MindsDB by setting env variables before importing the mindsdb module
+You can manipulate the default settings of MindsDB by setting ENV variables before importing the mindsdb module,
 
 For example: if you want to specify a different Mongo Server
 

docs/Installing.md

@@ -7,27 +7,9 @@ You can install MindsDB as follows
  pip3 install mindsdb --user
 ```
 
+#### OPTIONAL
 
-#### You need:
-
-****MongoDB server****:  By default, MindsDB will look for it in mongodb://127.0.0.1/mindsdb
-
-On MacOS
-
-```bash
-brew install mongodb
-
-```
-
-To run it
-
-```bash
-sudo mongod
-```
-
-#### Good to have
-
-***SQLite***: Although by default python3 comes with SQLite, you would want to have SQLite versions >=(3.25.0) as it support WINDOW functions, which can be very handy for data preparation
+***SQLite***: Although by default python3 comes with SQLite, you would want to have SQLite versions >=(3.25.0) as it supports WINDOW functions, which can be very handy for data preparation
 
 On MacOS
 

docs/README.md

@@ -1,4 +1,4 @@
-
+[<Back to Table of Contents](README.md)
 # MindsDB
 
 Welcome to mindsDB, the following links will walk you through the basic steps to MindsDB.