It sounds like you're illiterate. The full text of the indictment has been posted multiple times.
Stone coordinated with Wikileaks on the timing of the release of the emails and he knew the source of the emails was Russian hackers. He communicated directly with them as well. Stone coordinated with the administration on the timing of the release of the emails. There has long been a prima facie case for Trump's campaign having a connection to the Russian election interference campaign. This makes it practically a slam dunk if the charges against Stone are proven in court.
Stone lied about the existence of records of his communications with other conspirators (for lack of a better term, pending results of judicial proceedings yet to take place) and with Wikileaks. He attempted to get other witnesses to also lie, i.e. witness tampering, which has to be one of the most serious offenses there is, if the justice system is to take itself seriously. And all of this appears to be in writing, in the form of texts, emails, and Twitter messages.
There are a total of 7 charges, of which lying in his testimony is perhaps the least serious. Of course, it's all accusation until proven in court, but if they have the evidence they claim to have (and why wouldn't they?) that won't be hard.
Anymore questions?