diff --git a/docs/about.md b/docs/about.md
index d804e30..66a1235 100644
--- a/docs/about.md
+++ b/docs/about.md
@@ -3,8 +3,8 @@ This part containts developement milestones with accompaning documents.
 
 ## 1. Technical requirements
 The technical requirements for O-ESD hardware are summarized along with review of multiple ESD guns available on the market. Technical specifications of hardware on the market are compared to the specification from IEC61000-4-2 standard.
-[Technical requirements] (https://o-esd.etf.bg.ac.rs/forgejo/dragan.olcan/O-ESD/raw/branch/main/Documents/O-ESD-01.pdf) 
+[Technical requirements](https://o-esd.etf.bg.ac.rs/forgejo/dragan.olcan/O-ESD/raw/branch/main/Documents/O-ESD-01.pdf) 
 
-## 2. Schematics and considered realizations of O-ESD 
+## 2. Schematics and considered realizations of high-voltage generator for O-ESD 
 Various approaches considered as possible solutions for O-ESD are given along with the schematics in LTspice program. 
-[Schematics and possible realizations of high-voltage generator for O-ESD] (https://o-esd.etf.bg.ac.rs/forgejo/dragan.olcan/O-ESD/raw/branch/main/Documents/O-ESD-01.pdf) 
+[Schematics and possible realizations of high-voltage generator for O-ESD](https://o-esd.etf.bg.ac.rs/forgejo/dragan.olcan/O-ESD/raw/branch/main/Documents/O-ESD-02.pdf)