fix some malformed yamls and add clear example

README.md

@@ -1,12 +1,23 @@
 # An open letter in support of RMS.
 
-To sign, create a file in `_data/signed/` named `<username>.yaml` with the following content:
+To sign, create a file in `_data/signed/` folder named `<username>.yaml` with the following content:
 
 ```yaml
 name: <your name here>
 link: <link to your profile or site>
 ```
-Then create a pull request.
+
+Without the `<>`.
+
+Example:
+```yaml
+name: Example name
+link: https://example.com/
+```
+
+Don't use `<>` in this file, as well as non-ascii symbols in file name.
+
+When youre done, create a pull request.
 
 Let's keep the tone firm, but professional.
 

_data/signed/ThatBlend.yml

@@ -1,2 +1,2 @@
-name: <Marek Fiala>
-link: <https://github.com/thatblend>
+name: Marek Fiala
+link: https://github.com/thatblend

_data/signed/Yaroslew.yaml

@@ -1,2 +1,2 @@
-Name: Yaroslew.yaml
-Link: https://github.com/Yarosleu
+name: Yaroslew
+link: https://github.com/Yarosleu

_data/signed/yahorosh.yaml

@@ -1,2 +1,2 @@
-name: Aleksandr Khoroshev <yahorosh>
+name: Aleksandr Khoroshev (yahorosh)
 link: https://github.com/yahorosh