fixed typos

src/app/pages/doc/content/start/basics/basics.component.html

 <p>
-  For the integration of Drugst.One into an simple html project, the Drugst.One
-  plugin has to be imported. For this unly two lines of code have to be added in
+  For the integration of Drugst.One into a simple html project, the Drugst.One
+  plugin has to be imported. For this, only two lines of code have to be added in
   the <code>{{"<"}}head{{">"}}</code> section of your html file:
   <app-code lang="html" [code]="basicCode"></app-code>
   These urls will always provide you with the latest release version of