📝 docs: update install from source documentation (#265)

docs/installation.md

@@ -51,8 +51,19 @@ If you want to use the rolling/edge branch, run the following commands instead:
 ```shell
 git clone https://github.com/neon-mmd/websurfx.git
 cd websurfx
-cargo build -r
+```
+
+Once you have changed the directory to the `websurfx` directory then follow the build options listed in the [building docs](./building.md). 
+
+After that run the following command if you have build the app with the `redis-cache` feature:
+
+``` shell
 redis-server --port 8082 &
+```
+
+After that run the following command to start the search engine:
+
+``` shell
 ./target/release/websurfx
 ```
 
@@ -79,15 +90,30 @@ After that edit the config.lua file located under `websurfx` directory. In the c
 -- ### General ###
 logging = true -- an option to enable or disable logs.
 debug = false -- an option to enable or disable debug mode.
-threads = 10 -- the amount of threads that the app will use to run (the value should be greater than 0).
+threads = 8 -- the amount of threads that the app will use to run (the value should be greater than 0).
 
 -- ### Server ###
 port = "8080" -- port on which server should be launched
-binding_ip_addr = "0.0.0.0" --ip address on the which server should be launched.
+binding_ip = "0.0.0.0" --ip address on the which server should be launched.
-production_use = false -- whether to use production mode or not (in other words this option should be used if it is to be used to host it on the server to provide a service to a large number of users)
+production_use = false -- whether to use production mode or not (in other words this option should be used if it is to be used to host it on the server to provide a service to a large number of users (more than one))
 -- if production_use is set to true
 -- There will be a random delay before sending the request to the search engines, this is to prevent DDoSing the upstream search engines from a large number of simultaneous requests.
-request_timeout = 60 -- timeout for the search requests sent to the upstream search engines to be fetched (value in seconds).
+request_timeout = 30 -- timeout for the search requests sent to the upstream search engines to be fetched (value in seconds).
+rate_limiter = {
+	number_of_requests = 20, -- The number of request that are allowed within a provided time limit.
+	time_limit = 3, -- The time limit in which the quantity of requests that should be accepted.
+}
+
+-- ### Search ###
+-- Filter results based on different levels. The levels provided are:
+-- {{
+-- 0 - None
+-- 1 - Low
+-- 2 - Moderate
+-- 3 - High
+-- 4 - Aggressive
+-- }}
+safe_search = 2
 
 -- ### Website ###
 -- The different colorschemes provided are:
@@ -112,7 +138,10 @@ theme = "simple" -- the theme name which should be used for the website
 redis_url = "redis://redis:6379" -- redis connection url address on which the client should connect on.
 
 -- ### Search Engines ###
-upstream_search_engines = { DuckDuckGo = true, Searx = false } -- select the upstream search engines from which the results should be fetched.
+upstream_search_engines = {
+	DuckDuckGo = true,
+	Searx = false,
+} -- select the upstream search engines from which the results should be fetched.
 ```
 
 After this run the following command to deploy the app: