More readme

README.md

@@ -16,7 +16,9 @@ Congratulations! Now the cli binary `ecb-rates` will be in your cargo bin folder
 
 ## Features
 
-#### Fetch in different views
+#### Fetch as many days as you want
+
+It will fetch any of the following api nodes, and reduce them for you.
 
 - Last available day.
 - Last 90 days
@@ -32,9 +34,20 @@ Congratulations! Now the cli binary `ecb-rates` will be in your cargo bin folder
 
 It features an extensive cache, which will [calculate hollidays](src/holiday.rs) in order to know whether to invalidate it or not.
 
+#### Show the rates in your way
+
+Change the rates for the perspective of any currency with the `--perspective` or `-p` flag.
+
+Flip it from `EUR to ALL` to `ALL to EUR` with the `--invert` or `-i` flag. It will work as expected with the *perspective* option.
+
+#### Fast
+
+It wouldn't be a rust project without being *BLAZINGLY FAST*! When the cache is valid a single day will on my computer be shown in 3 ms. When the cache isn't being used it will be ~90ms. The cache speed will largely depend on your drive, the latter will depend on your network speed. Both options are fast enought to be in a `.bashrc` or `.zshrc`
+
 ### Examples
 
 #### Show the original data from ECB
+
 ![eur-to-all](screenshots/eur-to-all.png)
 
 #### ...with only select currencies
@@ -49,6 +62,10 @@ It features an extensive cache, which will [calculate hollidays](src/holiday.rs)
 
 ![all-to-usd](screenshots/all-to-usd.png)
 
+#### Show multiple days
+
+![eur-to-all-multiple-days](screenshots/eur-to-all-multiple-days.png)
+
 ## Acknowledgment
 
 The data is (obviously) provided by the [European Central Bank](https://www.ecb.europa.eu/stats/policy_and_exchange_rates/euro_reference_exchange_rates/html/index.en.html)