Fix link and grammar

README.md

@@ -46,7 +46,7 @@ You should see a plot similar to:
 
 This example shows a mass that is thrown upwards, slows down and then falls.
 
-**Julia code:** [Tether_01.jl](src/Tether_01.jl)
+**Julia code:** [Tether_01.jl](https://github.com/ufechner7/Tethers.jl/blob/main/src/Tether_01.jl)
 
 These differential equations define the model:
 ```Julia
@@ -67,11 +67,11 @@ The next lines are:
 @named sys = ODESystem(eqs, t)
 simple_sys = structural_simplify(sys)
 ```
-This means, we create a named ordinary equation system, depending on `t`. Then we simplify
+This means we create a named ordinary equation system, depending on `t`. Then we simplify
 the system symbolically (order reduction). If you type `sys` in the Julia REPL (command line)
 you can see that the original system had 9 equations, the second line above created a system
-with ony six equations. This step helps to speed up the simulation and often also removes
-algebraic loops which makes the ODE a lot simple to solve numerically later on.
+with only six equations. This step helps to speed up the simulation and often also removes
+algebraic loops which makes the ODE a lot simpler to solve numerically later on.
 
 ## Python version as comparison
 From the Julia prompt execute:
@@ -80,7 +80,7 @@ include("src/RunTether.jl")
 ```
 This will install Python, Matplotlib and Assimulo and execute the script `Tether_01.py`.
 
-**Python code:** [Tether_01.py](src/Tether_01.py)
+**Python code:** [Tether_01.py](https://github.com/ufechner7/Tethers.jl/blob/main/src/Tether_01.py)
 
 If you compare the Python and the Julia scripts you can see that:
 - the Julia script is shorter and easier to read

docs/src/vscode.md

@@ -15,6 +15,6 @@ I suggest to install the following `Extensions`:
 - YAML
 - Even Better TOML
 
-VSCode has good, integrated GIT support by default, no extension needed for that.
+VSCode has good, integrated GIT support by default, no extension is needed for that.
 
-I would NOT use all the advanced features of julia-vscode, I prefer to just use the vscode terminal and launch julia from the terminal. This makes it easy to launch Julia with any command line options and also to start and restart Julia quickly.
+I would NOT use all the advanced features of julia-vscode, I prefer to just use the vscode terminal and launch Julia from the terminal. This makes it easy to launch Julia with any command line options and also to start and restart Julia quickly.